Technological innovation has resulted in the production of rifles that can kill from a distance of 2,000 yards.

Tracing the history of bombers, from early aircraft to the bunker-busters of today.

Tracing the history of infantry weapons for the individual.

Tracing the development of helicopters and other vertical take-off aircraft.

Technological innovation has resulted in the production of rifles that can kill from a distance of 2,000 yards.

Tracing the history of the United States Marine Corps.

Extreme Warriors are trained to live and fight in the harshest environments known to man - exposed mountaintops, extreme altitude, sub-zero temperatures, snowstorms - these guys bring the pain in any terrain.

Soldiers of the Waffen-SS serve as Nazi Germany's ultimate warriors during World War II.

Two regular automobiles are turned into remote-controlled vehicles ready to destroy each other with machine guns, rockets and other devices.

The history of fighting vehicles and armored personnel carriers.

Combat engineers use their skills to both build and destroy.

Tracing the history of the United States Marine Corps.

The history and development of tanks.

American code breakers have given the United States an edge in every conflict in American history.

A secret society gathers in the dead of night and plots the assassination of President Abraham Lincoln; U.S. spymaster Allan Pinkerton stops Confederate agents before they can topple the Union.

Many of the Founding Fathers and 14 U.S. presidents were members of the secret society known as the Freemasons.

Bordellos, which have endured for thousands of years, hold secrets involving famous patrons, governments and religion.

An examination of underground bunkers, from their use in ancient wartime planning to the hidden survival complexes found beneath modern American cities.

Investigating UFOs and the strange stories surrounding them, including the existence of a "shadow government" and the rumor of a Nazi flying saucer that crashed in New Mexico.

Some motorcycle clubs are viewed not as social clubs for nonconformists but as organized crime syndicates.

Secrets of gambling mecca Las Vegas include the city's connection to organized crime, crafty tricks used by casinos and why the Nazis considered it a target for sabotage.

American Nazis hold rallies at New York's Madison Square Garden in the 1930s and plot to steal the nation's weapons secrets.

The Mutual UFO Network investigates a possible UFO sighting and abduction using the tools of science, psychology and law enforcement.

MUFON has a hard time separating fact from fiction as they travel to three cities in Mexico.

The MUFON investigators converge on Bucks County in Pennsylvania because of a quick rise in UFO sightings.

American Nazis hold rallies at New York's Madison Square Garden in the 1930s and plot to steal the nation's weapons secrets.

The Mutual UFO Network investigates a possible UFO sighting and abduction using the tools of science, psychology and law enforcement.

MUFON has a hard time separating fact from fiction as they travel to three cities in Mexico.

The MUFON investigators converge on Bucks County in Pennsylvania because of a quick rise in UFO sightings.

Some motorcycle clubs are viewed not as social clubs for nonconformists but as organized crime syndicates.

Secrets of gambling mecca Las Vegas include the city's connection to organized crime, crafty tricks used by casinos and why the Nazis considered it a target for sabotage.

Even after getting caught, Tony Darwin continues working for a notorious smuggler until a deadly plane crash forces him to flee the country; the pressure mounts when his girlfriend threatens to rat him out.

Patrick Murphy and six other inmates conduct the largest prison escape in Texas history, only to kill a police officer and face a showdown with authorities.

After a man in prison for life falls in love with a guard, she helps him escape, and they go on the run together.

A man convicted of murder, and his cell mate, escape through an air duct, but his freedom ends following a car crash.

Career criminal David Corbin launches a crime wave following a prison stint; a jealous girlfriend turns him in and he is sent to prison, where he pulls off an escape.

On the run after killing his mother, Scott Webb, and his wife, take refuge in a Texas church until a news report leads them to flee.

Brothers plan a daring escape from a county jail and flee to Kentucky before one of the escapees' ex turns them in.

After serving time for stealing from wealthy people, Brian Fuller returns to his ways of robbing the rich.

Serving a life sentence for a double homicide, Harold Laird gets creative to escape from prison and evades the law on several occasions.

Bank robber Steven Ray Milam is dubbed the Handsome Guy Bandit, then he makes a costly mistake forcing him to leave his family and go on the run with the FBI in pursuit.

Albert Paul is arrested for murder and spends the next couple of decades pulling off daring prison breaks only to get captured after every attempt.

Prison escapee Jimmy Maxwell's volatile nature makes him a menace to authorities every time they corner him.

Serving a 60-year sentence for a crime he says he didn't commit, Russell Kerr colludes with a fellow inmate, Christopher Stout, to hatch an elaborate escape plan.

After getting handed a stiff sentence for robbery, Robert Nielsen escapes prisons and lives under the radar with his family, but they cannot shield the young fugitive from the challenges of being on the run.

Career criminal Peter Gibbs faces decades behind bars for a string of robberies but refuses to go down without a fight.

Deeply in debt after suffering a serious injury, Jaime Jones dons a disguise and robs banks to pay off his debts and take care of his family.

Facing a long prison sentence, Darryl Norris pulls off a brilliant escape through the ceiling of his cell and plans to flee the country.

After Andrew Heim's prison buddy finds a way to tunnel out of the prison, he escapes along with five other inmates, and they are dubbed The Pittsburgh Six.

Career criminal Peter Gibbs faces decades behind bars for a string of robberies but refuses to go down without a fight.

Deeply in debt after suffering a serious injury, Jaime Jones dons a disguise and robs banks to pay off his debts and take care of his family.

Facing a long prison sentence, Darryl Norris pulls off a brilliant escape through the ceiling of his cell and plans to flee the country.

After Andrew Heim's prison buddy finds a way to tunnel out of the prison, he escapes along with five other inmates, and they are dubbed The Pittsburgh Six.

Serving a 60-year sentence for a crime he says he didn't commit, Russell Kerr colludes with a fellow inmate, Christopher Stout, to hatch an elaborate escape plan.

After getting handed a stiff sentence for robbery, Robert Nielsen escapes prisons and lives under the radar with his family, but they cannot shield the young fugitive from the challenges of being on the run.

The noble warriors of Echo Company, 2nd Battalion, 4th Marines face down an overwhelming North Vietnamese Army in Dai Do fight to rescue their fellow Marines.

Bravo Company, 1st Battalion, 8th Marines, help lead the charge into Iraq's most dangerous city in 2004, battling in the bloodiest, most sustained house-to-house urban combat American soldiers have seen since Vietnam.

When Charlie Company of the 1st Cavalry Division wanders into an NVA stronghold, an attack leaves supplies low, casualties mounting and the enemy circle tightening, so Team Alpha volunteers to try the difficult rescue.

A small group of National Guardsmen fight to deny victory to Hitler in he thought would be the most decisive battle of the war.

A top KGB spy became America's greatest asset in the Cold War after defecting to the West.

KGB Colonel Oleg Gordievsky spends ten years spying for Britain's secret service when he learns that the Soviets are on to him.

A KGB turncoat is ready to turn over top secret intelligence to bring down the Soviet Union from within.

The best-kept secrets of World War II revealed.

An early pioneer for racial equality; German children await candy from the skies; a moonshiner develops a famous rifle.

The stories behind some of the biggest deceptions, the top secrets and the secret weapons used to help defy the Nazis in WWII.

The stories behind George Washington, the California Gold Rush, the vast highways that stretch across America, and the wars between the United States and Great Britain.

Learning about the phrase Go for Broke!, the Fall of Saigon at Vietnam's bitter end, the legends spun around top-secret microfilm, and the classic movie, "The Dirty Dozen."

Exploring the secrets and scandals of Madison Square Garden, the world's most famous arena, and the crime and corruption that surrounded Prohibition Bootlegging.

Exploring the significance of the Civil War, the CIA, the Civil Rights movement, and the advent of flight.

Exploring the unbreakable codes, top secret underground nerve centers, super-human navy seals, and most classified operations of WWII.

The secrets and stories behind the United States' greatest icons.

Exploring a conspiracy that helped three inmates escape; revealing the truth behind the dungeon of Alcatraz; discovering the remnants of a mysterious military outpost with links to Abraham Lincoln.

The Coast Guard performs a combat role in the Vietnam War.

Exploring the unbreakable codes, top secret underground nerve centers, super-human navy seals, and most classified operations of WWII.

The secrets and stories behind the United States' greatest icons.

Exploring a conspiracy that helped three inmates escape; revealing the truth behind the dungeon of Alcatraz; discovering the remnants of a mysterious military outpost with links to Abraham Lincoln.

The Coast Guard performs a combat role in the Vietnam War.

Exploring the secrets and scandals of Madison Square Garden, the world's most famous arena, and the crime and corruption that surrounded Prohibition Bootlegging.

Exploring the significance of the Civil War, the CIA, the Civil Rights movement, and the advent of flight.

Looking at the Allied "monument men" discovery in 1945 of rotting corpses of Germanic heroes; what are they doing in a salt mine 18,000 feet down? It leads to an adventure that exposes a world of magic, high priests and secret castles.

It is one of the gargantuan struggles of the Second World War. Two men, one a Catholic pope who represents God on earth, the other, the German Führer, who believes he is God on earth.

Advanced Nazi scientists take inspiration from the suddenly popular flying saucer movies to create super weapons.

Exploring the role of occult played in shaping and determining the outcome of the fight and revealing how esotericism and mysticism influenced Hitler's wartime commanders.

The most destructive war begins as German troops invade Poland.

Facing a new type of warfare, Poland was conquered in just four weeks by Hitler's army.

Being victorious in Western Europe, Nazi Germany controlled Denmark, Norway, the Netherlands, Belgium and France, but Britain remained defiant.

No longer considering Britain a threat, Hitler focuses on Operation Barbarossa.

On December 7, 1941, Japanese planes bomb the U.S. Pacific Fleet in Pearl Harbor.

Benito Mussolini dreams of recreating the Roman Empire.

A secret weapons program in the heart of Austria could have caused trouble for the Allies and may have indicated nuclear plans being concocted by Hitler.

As the Soviet Army pushes the Nazis out of Poland, they discover a massive city of over 1,000 buildings that was unknown to the Allies; using the latest science, experts reveal how Hitler was able to keep this sinister place hidden for so long.

New discoveries on a strange fortified island reveal the terrifying truth behind Hitler's secret plan to win World War II at all costs.

New discoveries reveal whether this abandoned mansion was a secret Nazi base intended for a sinister mission.

The crew of the Allied Lancaster ME669 bomber had one of the most dangerous jobs of World War II, but the controversial tactic known as "total war" overshadowed its legacy.

U.S. Air Force Col. Robin Olds masterminds Operation Bolo, a combat ruse designed to lure MiG-21 enemy aircraft to their destruction during the Vietnam War.

U.S. Air Force fighter pilot Francis "Gabby" Gabreski becomes America's top flying ace in Europe during World War II.

An experimental program to train black fighter pilots during World War II helps change the course of American history.

The crew of the Allied Lancaster ME669 bomber had one of the most dangerous jobs of World War II, but the controversial tactic known as "total war" overshadowed its legacy.

U.S. Air Force Col. Robin Olds masterminds Operation Bolo, a combat ruse designed to lure MiG-21 enemy aircraft to their destruction during the Vietnam War.

U.S. Air Force fighter pilot Francis "Gabby" Gabreski becomes America's top flying ace in Europe during World War II.

An experimental program to train black fighter pilots during World War II helps change the course of American history.

New discoveries on a strange fortified island reveal the terrifying truth behind Hitler's secret plan to win World War II at all costs.

New discoveries reveal whether this abandoned mansion was a secret Nazi base intended for a sinister mission.

The Kennedys explore the 1960s civil rights movement and retrace the Selma to Montgomery marches in Alabama; interviews with participants.

President Lincoln initiated a series of events that culminated in the moon landing.

Iconic tough guys include singer Elvis Presley, Gen. Ulysses S. Grant, baseball slugger Ted Williams and President John F. Kennedy.

Astronaut John Glenn, martial artist Bruce Lee, President Harry S. Truman and journalist Hunter S. Thompson each lived life without boundaries.

President George Washington takes on Gen. Douglas MacArthur; aviator Amelia Earhart is matched against boxer Jack Johnson.

Legendary figures Benjamin Franklin, Al Capone, Abraham Lincoln and Ernest Hemingway take a seat at the tough-guy table.

During the Great Depression, a violent crime wave sweeps the nation and it's up to the FBI's Melvin Purvis to lead a massive manhunt for the most dangerous men in America.

The Everglades are home to bank robbers, rumrunners, and cold-blooded killers and Sheriff Bob Baker is determined to take down one of the most infamous and deadly gangs in Florida's history.

Lawlessness runs rampant in a notorious Texas outpost and it's up to legendary lawman Dallas Stoudemire to tame the town known as "Hell" Paso.

With outlaws firing machine guns in the streets of Oklahoma City, sharpshooting legend Delf 'Jelly' Bryce is on a collision course with some of the most violent men in America.

Using his fists instead of a pistol, professional boxer turned frontier lawman Tom Smith is determined to clean up 'Hell on Earth'.

A New York City cop uncovers a German terrorist cell operating on American soil during World War I and fights to stop them before it's too late.

The American Civil War enters its second year in the summer of 1862, becoming a more brutal conflict than anyone ever imagined.

More than 200,000 soldiers are killed or wounded as the American Civil War enters its third year; the conflict's bloodiest days are still to come.

Rival railroads the Atchison, Topeka & Santa Fe Railway and the Denver & Rio Grand Railroad race to reach the narrow Royal Gorge first after Leadville, Colorado strikes silver in the 1870's.

Ranching homesteaders and cattle barons start a feud in 1880s Wyoming after they clash over land, power and the future of the America West.

William Poole, the leader of New York gang the Bowery Boys, clashes with bare-knuckle boxer John Morrissey.

Legendary con artist Jefferson "Soapy" Smith and his loyal Soap Gang are pitted against vigilante Frank Reid and the Committee of 101 in a battle to bring justice to the lawless Alaskan frontier.

Rival railroads the Atchison, Topeka & Santa Fe Railway and the Denver & Rio Grand Railroad race to reach the narrow Royal Gorge first after Leadville, Colorado strikes silver in the 1870's.

Ranching homesteaders and cattle barons start a feud in 1880s Wyoming after they clash over land, power and the future of the America West.

William Poole, the leader of New York gang the Bowery Boys, clashes with bare-knuckle boxer John Morrissey.

Legendary con artist Jefferson "Soapy" Smith and his loyal Soap Gang are pitted against vigilante Frank Reid and the Committee of 101 in a battle to bring justice to the lawless Alaskan frontier.

The American Civil War enters its second year in the summer of 1862, becoming a more brutal conflict than anyone ever imagined.

More than 200,000 soldiers are killed or wounded as the American Civil War enters its third year; the conflict's bloodiest days are still to come.

On the frontline of the 21 day battle for Baghdad.

American Green Berets launch an attack on Sperwan Ghar where they encounter nearly 1000 Taliban fighters.

The 101st Airborne Division face off against the Taliban during Operation Dragon Strike.

U.S. troops run into a massive force of North Vietnamese soldiers on the Cambodian border.

Advanced techniques used to train smart, inventive soldiers.

What it takes to be a Marine sniper.

A look at the fastest, deadliest attack helicopters being used today.

Modern guns combine unparalleled accuracy, range and stopping power.

A look inside the fiercest tanks to ever storm the battlefield.

Exposing the intriguing secrets of modern explosives.

Compact but deadly weapons for engaging enemies at short range.

Highlighting some of the world's most powerful man-portable weapons.

The history and development of tanks.

The U.S. Navy SEALs is the world's most versatile special operations force.

Tracing the history of the United States Marine Corps.

Soldiers of the Waffen-SS serve as Nazi Germany's ultimate warriors during World War II.

The history of America's airborne soldiers.

Members of the U.S. Army Rangers utilize cutting-edge military technology.

Tracing the history of the United States Marine Corps.

Soldiers of the Waffen-SS serve as Nazi Germany's ultimate warriors during World War II.

The history of America's airborne soldiers.

Members of the U.S. Army Rangers utilize cutting-edge military technology.

The history and development of tanks.

The U.S. Navy SEALs is the world's most versatile special operations force.

The stories behind some of the biggest deceptions, the top secrets and the secret weapons used to help defy the Nazis in WWII.

The stories behind George Washington, the California Gold Rush, the vast highways that stretch across America, and the wars between the United States and Great Britain.

Learning about the phrase Go for Broke!, the Fall of Saigon at Vietnam's bitter end, the legends spun around top-secret microfilm, and the classic movie, "The Dirty Dozen."

Exploring the secrets and scandals of Madison Square Garden, the world's most famous arena, and the crime and corruption that surrounded Prohibition Bootlegging.

Exploring the significance of the Civil War, the CIA, the Civil Rights movement, and the advent of flight.

Exploring the unbreakable codes, top secret underground nerve centers, super-human navy seals, and most classified operations of WWII.

The secrets and stories behind the United States' greatest icons.

Investigating the people, plots and ploys behind America's wartime secret weapons.

Exploring a conspiracy that helped three inmates escape; revealing the truth behind the dungeon of Alcatraz; discovering the remnants of a mysterious military outpost with links to Abraham Lincoln.

The Coast Guard performs a combat role in the Vietnam War.

American forces launch an across-the-beach infantry attack on the heavily fortified, Japanese-held atoll of Tarawa.

Three U.S. Marine battalions wage a successful attack against larger, entrenched enemy forces in the South Vietnamese city of Hue.

A hastily assembled, undermanned Marine rifle company known as "Bloody George" battles the odds during the Korean War.

U.S. Marines struggle to capture an elevated Japanese strongpoint on the island of Okinawa during World War II.

Highlighting the defining battles that turned the tide in the Pacific theater for the U.S.

The Cold War turns hot when the U.S. faces two communist giants in Korea.

The decisive moments of American involvement in Vietnam, highlighting key battles and turning points.

Key battles and strategies surrounding the liberation of Kuwait from invading dictator Saddam Hussein.

Highlighting the defining battles that turned the tide in the Pacific theater for the U.S.

The Cold War turns hot when the U.S. faces two communist giants in Korea.

The decisive moments of American involvement in Vietnam, highlighting key battles and turning points.

Key battles and strategies surrounding the liberation of Kuwait from invading dictator Saddam Hussein.

A hastily assembled, undermanned Marine rifle company known as "Bloody George" battles the odds during the Korean War.

U.S. Marines struggle to capture an elevated Japanese strongpoint on the island of Okinawa during World War II.

Templar fact and fiction have become blurred by their depictions in book and on film. This program presents a very different picture that challenges head on the orthodox beliefs about an order that angered much of Europe - particularly France.

Mary Magdalene, a key figure in Christianity, traveled with Jesus and is said to have witnessed his crucifixion and resurrection.

Mystery still surrounds how fascist dictator Benito Mussolini met his end, before being hanged.

Jamie Theakston investigates Johann Reichhart, a German executioner who killed approximately 3,000 people during World War II.

The Vatican Secret Archives is a treasure trove of history that is shrouded in secrecy; Jamie Theakston heads to Rome in a bid to gain access.

The extraordinary story of the Bulgarian secret department called Service 7, a force that operated in 9 countries.

Unearthing the secrets of a widespread criminal gang in the heart of Japan who are engaged in a variety of criminal activity including extortion, prostitution and illegal gambling.

Delving into the world of the KKK, which is just a shadow of its former self, and looking at the impact the group has had on America.

Exploring the secrets of The Assassins, one of the mostly deadly, notorious and secretive groups in the Medieval world, and discovering whether their skills and tactics been passed down and copied by today's Islamic terrorists.

Uncovering the history of the overwhelming military power of the Nazis, including their strong belief in ancient mysticism, the occult, and even alien contact which fueled their desire to rule as a genetically pure super-race.

Investigating the mysterious secret society known as 'The Priory of Sion' that traces its roots back to the 12th Century and is believed to protect incontrovertible, if heretical, information about the marriage of Jesus Christ.

Shedding light on the Brotherhood of Blood, a dark and mysterious sect sworn to protect and preserve the Holy Blood of Christ and revealing the extreme methods the Brotherhood used.

The mysterious reports of vanishing aircraft, UFOs and reverse engineering highly advanced technology from Area 52.

Newly declassified documents and firsthand accounts of unidentified submergible objects lead researchers to look to the water instead of the skies.

Pilots and astronauts share firsthand accounts of their encounters with mysterious, unknown flying objects.

New evidence reveals the possibility that extraterrestrials visited ancient humans, influencing ancient technologies, architecture and art; a scholar reveals evidence supporting his theory that aliens created ancient Sumerians.

Trace evidence from the history of ancient Egypt, to the myths of Native Americans through the art of the Renaissance period lead researchers to believe that otherworldly spacecraft have visited humans since the dawn of man.

New evidence from top intelligence, government and scientific witnesses who revealed the truth on their deathbeds.

Pilots and astronauts share firsthand accounts of their encounters with mysterious, unknown flying objects.

New evidence reveals the possibility that extraterrestrials visited ancient humans, influencing ancient technologies, architecture and art; a scholar reveals evidence supporting his theory that aliens created ancient Sumerians.

Trace evidence from the history of ancient Egypt, to the myths of Native Americans through the art of the Renaissance period lead researchers to believe that otherworldly spacecraft have visited humans since the dawn of man.

New evidence from top intelligence, government and scientific witnesses who revealed the truth on their deathbeds.

The mysterious reports of vanishing aircraft, UFOs and reverse engineering highly advanced technology from Area 52.

Newly declassified documents and firsthand accounts of unidentified submergible objects lead researchers to look to the water instead of the skies.

Desperate for their next high, Michael Kidd, Kevin Crandall and Marcus Thompson break into upscale homes on Halloween night in search of money, then their crime spree ends in a terrifying hostage situation.

Richard Garber goes on the run after he becomes the lead suspect in his neighbor's death.

A 17-year-old gang member flees to Mexico to avoid a 48-year prison sentence.

A convicted killer escapes from prison to start a new life with the woman he married while he was incarcerated.

Kerry Silvers and two other inmates overpower their guards and escape from prison.

After being convicted of murder, Jerry Bowen erases his fingerprints with acid and assumes the identities of homeless men to hide from authorities.

Marvin Carson settled an argument with rival gang member Richard Hawk by shooting him multiple times with an AK-47.

Living his life as a party everyday after shooting his girlfriend and finding the affection of a friend's mother leads to Robert Spencer's arrest.

A prison escapee learns how to beat the system and enjoy his new life of work, weed and women before he is busted.

Courtenay Savage is an ex-cop with a loaded gun aimed at a friend's trailer.

With 41 arrests and no convictions Phillip Williams had no worries about stabbing his ex in a parking lot until he became a wanted man and went on the road living off his gambling wins.

Edward Roberson and two fellow inmates escape jail and go on the run.

Sean Salley shoots an actress and her friends above a deli then flees to New Orleans then to Miami where he plans to leave the country for good.

Raymond Ross skips town with his cousin after beating a teen into a coma; the police close in on this trail.

A Texas separatist group takes two hostages and rangers are able to negotiate the release but two of the members get away undetected.

On a job to pick up a prostitute Lane Slettvet stabs a man, while trying to stay under the radar he still goes to parties for the drugs.

Steve Lamb was a part of a group of traffickers until he got caught in a sting operation.

Anthony Ragno witnesses a murder, then goes on the run and builds a life trafficking pot in the Haitian islands.

A Texas separatist group takes two hostages and rangers are able to negotiate the release but two of the members get away undetected.

On a job to pick up a prostitute Lane Slettvet stabs a man, while trying to stay under the radar he still goes to parties for the drugs.

Steve Lamb was a part of a group of traffickers until he got caught in a sting operation.

Anthony Ragno witnesses a murder, then goes on the run and builds a life trafficking pot in the Haitian islands.

Sean Salley shoots an actress and her friends above a deli then flees to New Orleans then to Miami where he plans to leave the country for good.

Raymond Ross skips town with his cousin after beating a teen into a coma; the police close in on this trail.

Highlighting the defining battles that turned the tide in the Pacific theater for the U.S.

The Cold War turns hot when the U.S. faces two communist giants in Korea.

The decisive moments of American involvement in Vietnam, highlighting key battles and turning points.

Key battles and strategies surrounding the liberation of Kuwait from invading dictator Saddam Hussein.

Investigating the people, plots and ploys behind America's wartime secret weapons.

The best-kept secrets of World War II revealed.

An early pioneer for racial equality; German children await candy from the skies; a moonshiner develops a famous rifle.

The stories behind some of the biggest deceptions, the top secrets and the secret weapons used to help defy the Nazis in WWII.

The stories behind George Washington, the California Gold Rush, the vast highways that stretch across America, and the wars between the United States and Great Britain.

Learning about the phrase Go for Broke!, the Fall of Saigon at Vietnam's bitter end, the legends spun around top-secret microfilm, and the classic movie, "The Dirty Dozen."

Exploring the secrets and scandals of Madison Square Garden, the world's most famous arena, and the crime and corruption that surrounded Prohibition Bootlegging.

Exploring the significance of the Civil War, the CIA, the Civil Rights movement, and the advent of flight.