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May 27 in History 1096 – Count Emicho enters Mainz, where his followers massacre Jewish citizens.At least 600 Jews are killed. 1120 – Richard III of Capua is anointed as Prince two weeks before his untimely death. 1153 – …

February 29, also known as leap day or leap year day, is a date added to most years that are divisible by 4, such as 2016, 2020, and 2024. A leap day is added in various solar calendars (calendars based on the Earth's revolution around the …

January 23 in History 393 – Roman Emperor Theodosius I proclaims his eight-year-old son Honorius co-emperor. 971 – Using crossbows, Song dynasty troops soundly defeat a war elephant corps of the Southern Han at Shao. 1264 –…

Lufthansa German Airlines Germany Aero-flot Airline – Russia Pan American World Airways System – S.A. Trans-world Airways – S.A. Delta Airlines – S.A. Thai Airways International – Thailand…