International Day for South-South Cooperation: This day is celebrated to promote economic, social and political cooperation among developing countries.
United Nations Day for South-South Cooperation: This day is observed to raise awareness about the importance of South-South cooperation in achieving sustainable development.
National Grandparents Day (USA): This day is celebrated in the USA to honor grandparents and to recognize the important role they play in families.
National Day of Encouragement (USA): This day is celebrated in the USA to promote acts of encouragement and kindness towards others.
International Day of Mindfulness: This day is observed to promote mindfulness and its benefits to individuals and society.
International Day of the Programmer: This day is celebrated to acknowledge the role of programmers in developing new technologies and applications.
490 BC – The Battle of Marathon: The Athenian army defeats the Persian army.
1609 – English explorer Henry Hudson, sailing on behalf of the Dutch East India Company, discovers Manhattan Island.
1846 – Elizabeth Barrett and Robert Browning exchange their first letters.
1910 – Alice Stebbins Wells becomes the first female police officer in the United States.
1940 – The Lascaux cave paintings in southwestern France are discovered by a group of young people.
1959 – The Soviet Union’s Luna 2 becomes the first human-made object to land on the Moon.
1992 – Mae Jemison becomes the first African-American woman to go into space, aboard the Space Shuttle Endeavour.
