Four U.S. presidents have been assassinated while in office - all were brought down by gunfire. And each of these presidential assassinations helped usher in a wave of important reforms and a new political era.
Since 1950, individual income taxes have been the primary source of revenue for the U.S. federal government.
After President Lincoln's death, the First Lady's public grieving was seen as evidence that she was an improper woman.
The fears he raised about the future of the nation—including excessive debt, hyper-partisanship and foreign interference in elections—were remarkably prescient.
Here are the back stories to some of the most intriguing presidential renderings.
It’s not as if Congress didn’t try.
The history of public weeping after the deaths of celebrities.
As Presidents' Day approaches, two preeminent historians join the enduring debate about whether George Washington or Abraham Lincoln was America’s greatest president.
The Emancipation Proclamation and the 13th Amendment, both signed by Abraham Lincoln, are the most significant among an impressive array of historic documents going up for auction this week.