On Nov. 28, 1925, the Grand Ole Opry (known then as the WSM Barn Dance) debuted on radio station WSM in Nashville, Tennessee; it continues today as the longest-running radio broadcast in U.S. history.

On Oct. 23, 1983, 241 U.S. service members, most of them Marines, were killed in a suicide truck-bombing at the U.S. Marine Corps barracks at Beirut International Airport in Lebanon, while a near-simultaneous attack on French barracks in Beirut killed 58 paratroopers.

On Aug. 14, 1935, President Franklin D. Roosevelt signed the Social Security Act into law, ensuring income for elderly Americans and creating a federal unemployment insurance program.

On July 17, 1955, Disneyland opened in Anaheim, California, after its $17 million, yearlong construction; the park drew a million visitors in its first 10 weeks.