1901-Dec-12 Guglielmo Marconi sent and received the first wireless message across the Atlantic Ocean
1808-Jan-01 The slave trade became illegal when the United States enacted a law banning the importation of slaves
1903-Dec-17 Innovation of the aeroplane
1997-Jul-01 The United Kingdom returned Hong Kong to the People's Republic of China
1964-Jul-02 United States President Lyndon B. Johnson signed the Civil Rights Act into law
1999-Jan-01 The Euro became the official currency in 11 European countries
2003-Jun-10 The Spirit Rover was launched by NASA to start the Mars Exploration Rover mission
1994-Jan-01 The implementation of the North American Free Trade Agreement
1963-Jun-10 President John F. Kennedy signed the United States Equal Pay Act into law
1863-Jan-01 President Abraham Lincoln signed the Emancipation Proclamation
1924-Dec-30 Astronomer Edwin Hubble formally announced that the Milky Way is just one of many galaxies in the universe
1993-Jan-01 Czechoslovakia was divided into two independent states
1990-Jan-03 Panamanian dictator Noriega surrendered to the United States
1974-Jan-02 President Richard Nixon signed the national speed limit into law
1945-Dec-27 International Monetary Fund was formally established by 29 member countries