1924-Dec-30 Astronomer Edwin Hubble formally announced that the Milky Way is just one of many galaxies in the universe
1835-Dec-29 The Treaty of New Echota was signed between the United States Government and representatives of a minority Cherokee Political Faction
1836-Dec-28 Spain recognized the independence of Mexico by signing the Santa María–Calatrava Treaty
1767-Dec-28 King Taksin was crowned King of Thailand (Siam)
1945-Dec-27 International Monetary Fund was formally established by 29 member countries
1949-Dec-27 Queen Juliana of the Netherlands signed the papers to grant independence to Indonesia
1932-Dec-27 Radio City Music Hall opened in New York City
1965-Aug-06 United States President Lyndon B. Johnson signed the Voting Rights Act into law
1964-Jul-02 United States President Lyndon B. Johnson signed the Civil Rights Act into law
1921-Jul-01 The Communist Party of China (CPC) was formed, and Chen Duxiu was elected its leader
1997-Jul-01 The United Kingdom returned Hong Kong to the People's Republic of China
1940-May-10 Winston Churchill became British Prime Minister, replacing Neville Chamberlain
2003-Jun-10 The Spirit Rover was launched by NASA to start the Mars Exploration Rover mission
1963-Jun-10 President John F. Kennedy signed the United States Equal Pay Act into law
1964-Dec-12 Kenya became a republic
1994-May-10 Nelson Mandela sworn in as the first black president of South Africa
1895-Nov-08 German physicist Wilhelm Conrad Röntgen discovered X-Rays
1808-Jan-01 The slave trade became illegal when the United States enacted a law banning the importation of slaves
1804-Jan-01 Haiti declared its independence from France
1926-Jan-26 John Logie Baird gave the first public demonstration of a live television system
2nd February World Wetlands Day
5th June World Environment Day
24th January International Day of Education
4th June International Day of Innocent Children Victims of Aggression
29th May International Day of United Nations Peacekeepers
1st June Global Day of Parents
21st May International Tea Day
21st May World Day for Cultural Diversity for Dialogue and Development
17th May World Telecommunication and Information Society Day
16th May International Day of Living Together in Peace
16th May International Day of Light
15th May International Day of Families