1932-Dec-27 Radio City Music Hall opened in New York City
1973-Oct-20 Queen Elizabeth II opened the Sydney Opera House
1993-Jan-01 Czechoslovakia was divided into two independent states
1940-May-10 Winston Churchill became British Prime Minister, replacing Neville Chamberlain
1997-Jul-01 The United Kingdom returned Hong Kong to the People's Republic of China
2003-Jun-10 The Spirit Rover was launched by NASA to start the Mars Exploration Rover mission
1921-Jul-01 The Communist Party of China (CPC) was formed, and Chen Duxiu was elected its leader
2018-Jun-12 The 2018 North Korea–United States Summit was held in Singapore
1964-Jul-02 United States President Lyndon B. Johnson signed the Civil Rights Act into law
1959-Jan-01 Cuban dictator Fulgencio Batista ousted by Castro-led revolution
2018-Jun-18 WHO officially announced it will categorize gaming addiction as a mental health condition
1974-Jan-02 President Richard Nixon signed the national speed limit into law
1964-Dec-12 Kenya became a republic
1956-Mar-03 Dutch swimmer Cockie Gastelaars broke two decades' world record for 100m freestyle
1990-Jan-03 Panamanian dictator Noriega surrendered to the United States
1903-Nov-06 The USA recognized the independence of Panama
1863-Jan-01 President Abraham Lincoln signed the Emancipation Proclamation