The 9/11 Tapes: Dead Silence
Air traffic controllers react to the second plane crashing into the World Trade Center on September 11, 2001.
Most Watched in American History
Assignment Discovery: Life of a Civil War Soldier
Learn about the harsh life of a Civil War soldier in the United States. Soldiers on both sides of the war ate poorly and drank unclean water, leading to health problems. Find out more with Discovery Channel's "Assignment Discovery."
Assignment Discovery: The Life of a Civil War Soldier
The American Civil War was a catalyst for change in America, and it was fought by young soldiers who believed in both sides of the Union and the Confederacy. Learn more about these young men with this clip from Discovery Channel's, "Assignment Discovery.
Assignment Discovery: History of Amistad
On Discovery Channel's series, "Assignment Discovery," Sengbe Pieh was an enslaved African who led a revolt on a Cuban slave ship. Learn more about the history of the Amistad in this clip.
Assignment Discovery: The Underground Railroad
This clip from Discovery Channel's series, "Assignment Discovery," explains the Underground Railroad. In the 1830s that name was given to a network of people that helped slaves escape from the South and reach free states.
Assignment Discovery: Beginnings of the Civil War
When Abraham Lincoln won the election in 1860, the South decided to leave the union and created the Confederate States of America. Learn more about the beginnings of the Civil War on Discovery Channel's "Assignment Discovery."
Assignment Discovery: The Amistad Mutiny
Cinque (or Singbe Pieh) got himself out of the shackles and released his fellow captives on the slave ship Amistad. Learn more about slavery and the Amistad on Discovery Channel's "Assignment Discovery."
Assignment Discovery: The Amistad Trial
In 1840, the Amistad case went to court. The question at hand was, were the slaves onboard property or free Africans to be returned to their country? Find out more on Discovery Channel's "Assignment Discovery."
Assignment Discovery: Julius and Ethel Rosenberg
In 1946, a secret United States government program found out that the Rosenberg's were working with Russian communists. However, they denied any wrongdoing until their execution. Learn more on Discovery Channel's "Assignment Discovery."
Assignment Discovery: The Alamo
An old Spanish mission in Texas called the Alamo became the site for a major battle in 1836. Learn more about this battle on Discovery Channel's "Assignment Discovery."
Assignment Discovery: Controversy Over Slavery
The Fugitive Slave Law and the book Uncle Tom's Cabin led to pro- and anti-slavery groups. Learn more about events that led to the Civil War on Discovery Channel's "Assignment Discovery."
Recent Videos in American History
The 9/11 Tapes: Direct Contact
Air traffic control receives direct contact from the terrorists who crashed American Airlines Flight 11 into the first World Trade Center tower on September 11, 2001.
The 9/11 Tapes: Racing to the Pentagon
Back on September 11, 2001, fighter jets raced to the Washington D.C. area to potentially intercept any incoming, non-responsive air crafts, but unfortunately they were not there in time.
Rising: Hangar 17
Take a look at some of the devastating remains from the 9/11 attacks on the World Trade Center.
Rising: Sense of Connection
The underground void at ground zero from the September 11 attacks on the World Trade Center will become home to the new 9/11 museum.
Rising: Trident Museum
The construction crews of the new 9/11 museum race to complete the pavilion -- housing the tridents from the twin towers -- before the victims' families arrive on 9/11/11.
Sons of Guns: Arming A Gunship
A client from Paragon Security wants Will and Red Jacket to create a custom Mag 58 machine gun that can be mounted in a helicopter gunship.
Rebuilding Ground Zero: Symbolism in Numbers
Architect David Childs explains that Tower One of the new World Trade Center will include a 400 foot antenna that brings the building's height to 1,776 feet - a tribute to the signing of the Declaration of Independence.