Calder's actual birthday remains a source of much confusion. According to Calder's mother he was born on 22 August yet his birth certificate at Philadelphia City Hall stated 22 July. When Calder's family learned about the birth certificate they reasserted with certainty that city officials had made a mistake. (22 July 1898)
There are 3367 births, 3931 deaths, 1121 murders, 498 disasters and 2076 other events about 5725 people in 6432 places until today.
Birth(+)Fact(x)Death(-) Calendar is an ongoing project since 1985 by DDV.
Friday 3rd of January 1496 (x) — Artist, scientist, engineer, mathematician, inventor and polymath Leonardo da Vinci unsuccessfully tests a flying machine