1901-Dec-12 Guglielmo Marconi sent and received the first wireless message across the Atlantic Ocean
1932-Dec-27 Radio City Music Hall opened in New York City
1804-Jan-01 Haiti declared its independence from France
1945-Dec-27 International Monetary Fund was formally established by 29 member countries
1959-Jan-01 Cuban dictator Fulgencio Batista ousted by Castro-led revolution
1973-Oct-20 Queen Elizabeth II opened the Sydney Opera House
1956-Mar-03 Dutch swimmer Cockie Gastelaars broke two decades' world record for 100m freestyle
1999-Jan-01 The Euro became the official currency in 11 European countries
2002-Jan-02 The Legislative Assembly appointed Eduardo Duhalde as interim President of Argentina
1863-Jan-01 President Abraham Lincoln signed the Emancipation Proclamation
1994-Jan-01 The implementation of the North American Free Trade Agreement
1895-Nov-08 German physicist Wilhelm Conrad Röntgen discovered X-Rays
1836-Dec-28 Spain recognized the independence of Mexico by signing the Santa María–Calatrava Treaty
1924-Jan-25 The first Winter Olympic Games opened in Chamonix, France
2018-Jun-12 The 2018 North Korea–United States Summit was held in Singapore