- 1542 Juan Rodriguez Cabrillo claims California for Spain
- 1743 War of the Austrian Succession: Battle of Dettingen: in Bavaria, King George II of Britain personally leads troops into battle. The last time a British monarch would command troops in the field.
- 1929 1st color TV demo (NYC)
- 1950 North Korean troops reach Seoul, UN asks members to aid South Korea, Harry Truman orders US Air Force & Navy into Korean conflict
- 1967 The world's first ATM is installed in Enfield, London
1st atomic power station opens - Obninsk, near Moscow in Russia
On June 27, 1954