From the Declaration of Independence to the 9/11 terror attacks, these are the most important dates in American history.

After three new episodes last year digging deep on the Long Island serial killer, the Titan submersible's tragic failure, and the Fundamentalist Latter-Day Saints, ABC News's acclaimed documentary ...

Kennedy's killer was murdered himself two days later, per police at the time. More than six decades after those fateful shots rang out in Dallas in 1963, the assassination of President John F. Kennedy ...

More than six decades after those fateful shots rang out in Dallas in 1963, the assassination of President John F. Kennedy remains one of America's most disputed and discussed crimes. Kennedy's murder ...

Being assigned to help protect the Vice President of the United States should be an honor. They may not be the President, but they're still next in line to hold the most powerful position in the world ...

Gunmen have fired on the motorcade of a Yemeni provincial official, killing at least five security officers and wounding two others ADEN, Yemen -- Gunmen fired on a Yemeni provincial leader's ...

President John F. Kennedy waved from his car in a motorcade approximately one minute before he was shot in Dallas on Nov. 22, 1963. First lady Jacqueline Kennedy rode with the president in the back ...

More than six decades after those fateful shots rang out in Dallas in 1963, the assassination of President John F. Kennedy remains one of America's most disputed and discussed crimes. Kennedy's murder ...

An officer is in critical condition after crashing while escorting Vice President JD Vance's motorcade near Knoxville, Tennessee. The incident occurred Friday night as the vice president was in town ...