The story of how the anonymous soldier came to rest inside the famous tomb is almost as unknown as his identity.
Along with staggering death tolls, the "Great War" generated memorable literature, geopolitical upheaval, hope, disillusion, the Russian Revolution and the seeds of World War II.
The first mass police shooting on a U.S. college campus happened two years before the Ohio National Guard opened fire on student protesters at Kent State University.
Mark Twain first laid eyes on a “newfangled typing machine,” as he called it, sometime in the early 1870s.
When Gerald Ford took over the presidency after Richard Nixon’s resignation, he soon made a controversial choice: he pardoned Nixon.
Some believed that a lottery was more democratic than a vote.
In 1950, Mary Ann Van Hoof gathered an estimated 100,000 people to see the Virgin Mary on a farm in Necedah, Wisconsin.
From the mid-1800s to well into the 20th century, the Capitol’s Demon Cat was the top dog of Washington ghost stories.
In 1956, New York City’s bomb squad used criminal profiling to catch a terrorist known as “The Mad Bomber.”
Civil rights crusader Fannie Lou Hamer rivaled Martin Luther King Jr. in her command of audiences.
Photographer Boris Yaro shot the haunting photograph of Bobby Kennedy lying fatally wounded in the arms of Juan Romero, a busboy.
In 1777, Captain John Paul Jones hatched a plan to take the American Revolution to Britain’s shores.
President Abraham Lincoln had two loving and supportive mothers in his lifetime. The second helped him cope with the tragic loss of the first.
Before an unnamed senior official in the Trump administration published the opinion piece, “I am part of the resistance inside the Trump administration" in the New York Times, another mysterious anonymous author lit up Washington.
Family and friends had known about the president’s intimate relationship with Mary Peck for years, but whispers about their involvement were growing.
Emmett Till’s mother opened his casket and sparked the civil rights movement.
More than 50,000 soldiers died during the Battle of Waterloo, but their teeth lived on.
Despite warnings of icebergs, the John Rutledge set sail from Liverpool, England, to New York.
In the fall of 1902, a year into his presidency, President Teddy Roosevelt set off to Mississippi for a bear-hunting vacation. It ended differently than planned.
The one night that changed President Nixon’s fate has stuck with us as a reminder of the limits of presidential power.