1. On June 13, 1789, the Kentucky county of Fayette was established. It was named after Gilbert du Motier, Marquis de Lafayette, a French general who played a significant role in the American Revolutionary War.

2. In 1844, on June 13, Sarah Josepha Hale published the famous children's poem "Mary Had a Little Lamb" in Boston's Juvenile Miscellany magazine. The poem became an instant hit, and it was later set to music and became a popular nursery rhyme.

3. On June 13, 1927, the Holland Tunnel opened in New York City. The tunnel connects Manhattan and Jersey City and was the first tunnel to ever be constructed beneath the Hudson River. It cost over $48 million to build and is still used by thousands of commuters every day.

4. In 1951, on June 13, the United States Air Force began testing the first jet-powered bomber, the B-47 Stratojet. The B-47 was a crucial element of the US nuclear deterrent strategy during the Cold War and helped pave the way for modern jet-powered aircraft.

5. On June 13, 1971, the first Gay Pride March was held in New York City. The march, which began as a commemoration of the Stonewall riots of the previous year, has since grown into a worldwide celebration of LGBTQ+ rights and culture. Today, New York City's Pride March is one of the largest and most popular in the world, attracting millions of participants and spectators.