Fe­bru­ary 29

PS Magazine - - POP CULTURE, NEWS, AND EVENTS FROM PAST DECADES -

We can thank Julius Cae­sar and the Greek as­tronomer, Sosi­genes of Alexan­dria, for cre­at­ing Fe­bru­ary 29. It takes 365.2422 days for Earth to or­bit the Sun, and cal­en­dars need to be syn­chro­nized to ac­count for that ex­tra frac­tion of a day. Be­fore the Ju­lian cal­en­dar was in­tro­duced in 46 BC, the Ro­man cal­en­dar was ob­served, con­sist­ing of 355 days and an ex­tra 22- day month oc­cur­ring ev­ery two years. Julius Cae­sar or­dered Sosi­genes to im­prove the cal­en­dar, which be­came a 365- day year with an ex­tra day ev­ery four years to ac­count for the ex­tra hours. Since Fe­bru­ary was the last month in the Ro­man cal­en­dar, it made sense to add the ex­tra day in Fe­bru­ary in the Ju­lian cal­en­dars.

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