Gregorian calendar is introduced in parts of Europe
Catholic countries begin adopting the Gregorian calendar reform, reshaping civil timekeeping in much of the world.
September 30 – October 6
Over 4 historical moments took place during these 7 days of the calendar year. Explore our curated digest of the most world-changing events, iconic births, and notable deaths.
Catholic countries begin adopting the Gregorian calendar reform, reshaping civil timekeeping in much of the world.
Mao Zedong proclaimed the establishment of the People's Republic of China.
The Soviet Union launches Sputnik 1, the first artificial satellite, beginning the Space Age.
Fighting in Mogadishu, Somalia, results in heavy casualties and becomes one of the defining military incidents of the 1990s.
No births recorded for Week 40.
No deaths recorded for Week 40.
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