June 21: Facts & Historical Events On This Day

Carl Nassib became the first openly-gay NFL player to play a regular-season game.

The guitar that Kurt Cobain used during Nirvana’s 1993 MTV Unplugged in New York show sold for $6 million.

Two newly discovered moons orbiting Pluto were named Nix and Hydra.

Nix is named after the Greek goddess of darkness and night, who also happens to be the mother of Charon. Hydra, on the other hand, is named after a mythological multi-headed serpent that Hercules defeated. Nix and Hydra were only first spotted by the Hubble Space Telescope in June 2005, partially because their orbits are much further out than Pluto's previously known moon, Charon.

J.K. Rowling published the 5th Harry Potter book “The Order of the Phoenix.”

Burning the US flag was deemed legal.

The US supreme court voted 5-4 in favor of making it legal to burn the flag as a means of political speech.

John Hinckley, who tried to kill President Reagan, was found not guilty on the grounds of insanity.

The most memorable concert of the decade occurred at Wembley Stadium.

On this day, Elton John and the Beach Boys performed at the sellout event so-called "MidSummer Music."

Louis St. Laurent resigned as the prime minister of Canada.

His action came after he was losing power, and he knew he wouldn't pass a confidence vote. His run became the longest continuous term as prime minister in Canadian history.

Manchester Mark I computer became the first stored computer to run a program at a lab at Manchester University, UK.

Construction on the world’s longest railway in Russia was completed.

Russia's Trans-Siberian Railway connects Moscow with the far Eastern city of Vladivostok. The railway is 5,772 miles (9,289 km) long and crosses eight time zones.

The US Navy claimed the island of Guam, which was previously under Spanish control.

Because the island of Guam had no notice of the invasion, they had no choice but to surrender immediately and pass the island over to the US.

Cyrus McCormick patented the reaping machine.

The machine was powered by horses and was used to reap crops during harvesting.

The British Army defeated Irish rebels at the Battle of Vinegar Hill.

King Louis XVI, Marie Antoinette, and their immediate family fled their home at the beginning of the French Revolution.

Their unsuccessful escape, known as the Flight to Varennes, ultimately led to their beheadings.

New Hampshire became the 9th state to join the United States of America.

A Dutch pensions advisor, Johan de Witt, was severely wounded in a knife attack.

De Witt was not popular with "Orangists," which was the first of many attacks. Eventually, in August 1672, he was shot dead in an organized attack by The Hague's civic militia.