1516 Duke Wilhelm IV of Bavaria endorses "The German Beer Purity Law" (Reinheitsgebot) and adds to it standards for the sale of beer in Bavaria, ensuring beer is only brewed from three ingredients: water, barley, and hops
- 1635 Oldest US public institution, Boston Latin School is founded
1st Presidential Residence
1789 President-elect George Washington moves into Franklin House, New York, the first official residence of a US President
- 1851 Canada issues its first postage stamp, a Three-Pence Beaver
- 1900 First known occurrence of the word "hillbilly" (NY Journal)
- 1949 Courtesy mail boxes for motorists started in San Francisco
- 1972 Apollo 16 astronauts explore the moon's surface
- 1982 Conch Republic is established - secession of the Florida Keys from the United States of America
- 1985 New Coke debuts; Coca-Cola announced it is changing its secret flavor formula
- 1988 Greek Olympic cyclist Kanellos Kanellopoulos pedals the MIT Daedalus 88 self-powered aircraft a record 71.5 miles (115 km) from Heraklion on the island of Crete to Santorini
Wine Seller Drops $500k Bottle of Wine
1989 Wine merchant William Sokolin breaks a bottle of 1787 Château Margaux, possibly belonging to Thomas Jefferson, worth $500,000 at the Four Seasons restaurant in New York
- 1992 McDonald's opens its 1st restaurant in China, serving over 40,000 customers on its opening day
- 2005 YouTube co-founder Jawed Karim uploads the first video to YouTube, "Me at the zoo," showing him in front of two elephants at the San Diego Zoo, which has over 311 million views [1]
- 2009 Gamma ray burst (GRB) 090423 is observed for 10 seconds, the most distant object of any kind and also the oldest known object in the universe
- 2020 First findings of a frog fossil 40 million years old, found on Seymour Island, Antarctica (2015) published in "Scientific Reports"
