1997 The United Kingdom returned Hong Kong to the People's Republic of China
1921 The Communist Party of China (CPC) was formed, and Chen Duxiu was elected its leader
1807 Innovation of the steamboat
1903 Innovation of the aeroplane
1974 President Richard Nixon signed the national speed limit into law
1965 United States President Lyndon B. Johnson signed the Voting Rights Act into law
2002 The Legislative Assembly appointed Eduardo Duhalde as interim President of Argentina
1963 President John F. Kennedy signed the United States Equal Pay Act into law
1990 Panamanian dictator Noriega surrendered to the United States
1926 John Logie Baird gave the first public demonstration of a live television system
1836 Spain recognized the independence of Mexico by signing the Santa María–Calatrava Treaty
2003 The Spirit Rover was launched by NASA to start the Mars Exploration Rover mission
1964 United States President Lyndon B. Johnson signed the Civil Rights Act into law
1895 German physicist Wilhelm Conrad Röntgen discovered X-Rays
1949 Queen Juliana of the Netherlands signed the papers to grant independence to Indonesia