On May 8, 1541, south of present-day Memphis, Tennessee, Spanish conquistador Hernando de Soto reaches the Mississippi River, one of the first European explorers to ever do so. After building flatboats, de Soto and his 400 ragged troops crossed the great river under the cover of night, in order to avoid the armed Native Americans who patrolled the river daily in war canoes. From there the conquistadors headed into present-day Arkansas, continuing their fruitless two-year-old search for gold and silver in the American wilderness.

Before the United States formally declared war on Mexico, General Zachary Taylor defeats a superior Mexican force in the Battle of Palo Alto north of the Rio Grande River.

On May 8, 1864, Yankee troops arrive at Spotsylvania Court House, Virginia, to find the Rebels already there. After the Battle of the Wilderness (May 5-6), Ulysses S. Grant’s Army of the Potomac marched south in the drive to take Richmond. Grant hoped to control the strategic crossroads at Spotsylvania Court House, so he could draw Robert E. Lee’s Army of Northern Virginia into open ground.

On May 8, 1884, Harry S. Truman is born in Lamar, Missouri. The son of a farmer, Truman could not afford to go to college. He joined the army at the relatively advanced age of 33 in 1916 to fight in World War I. After the war, he opened a haberdashery in Kansas City. When that business went bankrupt in 1922, he entered Missouri politics. Truman went on to serve in the U.S. Senate from 1934 until he was chosen as Franklin D. Roosevelt’s third vice president in 1945; it was during his Senate terms that he developed a reputation for honesty and integrity.

On May 8, 1919, Edward George Honey, a journalist from Melbourne, Australia, living in London at the time, writes a letter to the London Evening News proposing that the first anniversary of the armistice ending World War I—concluded on November 11, 1918—be commemorated by several moments of silence.

On May 8, 1963, with the American release of Dr. No, North American moviegoers get their first look down the barrel of a gun—at the super-spy James Bond (codename: 007), the immortal character created by Ian Fleming in his now-famous series of novels and portrayed onscreen by the relatively unknown Scottish actor Sean Connery.

President Nixon, at a news conference, defends the U.S. troop movement into Cambodia, saying the operation would provide six to eight months of time for training South Vietnamese forces and thus would shorten the war for Americans. Nixon reaffirmed his promise to withdraw 150,000 American soldiers by the following spring.

On May 8, 1976, John Sebastian's playfully nostalgic theme song for the TV show "Welcome Back, Kotter" becomes the number one pop single in the U.S.

On May 8, 2010, 88-year-old actress Betty White, known for her former roles on “The Golden Girls” and “The Mary Tyler Moore Show,” becomes the oldest person to host the long-running, late-night TV sketch comedy show “Saturday Night Live” (SNL). White’s hosting gig came about, in part, after hundreds of thousands of her fans signed onto a Facebook campaign rallying for it.