2003 The Spirit Rover was launched by NASA to start the Mars Exploration Rover mission
1963 President John F. Kennedy signed the United States Equal Pay Act into law
1836 Spain recognized the independence of Mexico by signing the Santa María–Calatrava Treaty
1994 Nelson Mandela sworn in as the first black president of South Africa
1901 Guglielmo Marconi sent and received the first wireless message across the Atlantic Ocean
1814 Innovation of the steam locomotive (engine)
1997 The United Kingdom returned Hong Kong to the People's Republic of China
1804 Haiti declared its independence from France
1903 Innovation of the aeroplane
1940 Winston Churchill became British Prime Minister, replacing Neville Chamberlain
1964 United States President Lyndon B. Johnson signed the Civil Rights Act into law
1876 Innovation of the telephone
1921 The Communist Party of China (CPC) was formed, and Chen Duxiu was elected its leader
1926 John Logie Baird gave the first public demonstration of a live television system