1940-May-10 Winston Churchill became British Prime Minister, replacing Neville Chamberlain
2003-Jun-10 The Spirit Rover was launched by NASA to start 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 live television system
1901-Dec-12 Guglielmo Marconi sent and received the first wireless message across the Atlantic Ocean
1807-Aug-17 Innovation of the steamboat
1903-Dec-17 Innovation of the aeroplane
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
12th May International Day of Plant Health