International Chernobyl Disaster Remembrance Day: All you need to know
The explosion at the Chernobyl Nuclear Power Plant led to a radioactive cloud over large parts of the former Soviet Union, now the territories of Belarus, Ukraine & Russia
Women’s Day: When was it first celebrated – See photos of events around the world since 1917
The first celebration of Women's Day took place on February 28, 1909 in New York City - The United Nations began celebrating International Women's Day in the International Women's Year 1975
Which Countries Have Been to the Moon? (infographic)
USA leads