In 1692, the panic, paranoia, and violence surrounding witchcraft in Salem, Massachusetts, ended almost as quickly as it began. Now a group of historians has uncovered new information about the infamous witch hunt and its enduring mysteries.

In 1864, papers found on the body of Union Colonel Ulric Dahlgren ordered the assassination of Confederate President Jefferson Davis. Historians are now uncovering the plot—and questioning whether Lincoln’s assassination a year later was retaliation.

The Spanish flu was one of the most devastating natural disasters in history, an unstoppable virus that swept the planet in 1918 and killed tens of millions of people. New evidence suggests the possible birthplace was actually in America’s heartland.

The conventional Pearl Harbour story is that America was hit without warning. But newly declassified documents from U.S. Naval Intelligence and the FBI reveal a drastically different tale.

Modern historians investigate the claim of a 1982 Russian gas pipeline explosion to see if it was the result of the world’s first-ever cyber attack, a retaliatory measure ordered by Ronald Reagan to bring the Soviet Union to its knees.

Casimir Pulaski was an American Revolutionary War hero who helped save George Washington’s life in the Battle of Brandywine. He was known as the “Father of the American Cavalry,” but new evidence suggests that the general may not have been male.