Egyptian Calendar By: Young A tablet of King Djer shown that early Egyp;ans made calendars for themselves and have used it since 3000 BCE Egyp;ans were using their calendar to know exact dates to do agriculture. Calendar Types There were 2 different calendar systems in ancient Egypt: Calendar (using stars) • Civil Calendar (origin of nowadays calendar) Lunar Calendar Egypt used Luni-solar Calendar (lunar calendar) with There was a 13th month (Troth), intercalaon of extra month which was un;l heliacal rising of Sothic happened. Each month started with a new moon, so the year was 11 days shorter than the modern one. However, Lunar calendar wasn’t precise. Sothic Sothic is a Greek term of Sopdet (Egypt language), which is Sirius, the brightest star The period that Sothic was at the sky, Nile flooded. Therefore, Egyp;ans set the period as the New year. In Egypt, Sothic was only shown once a year. There were 3 parts in the year: Akhet (flooding), Peret (growth-winter), and Shemu (harvest-summer) Every months were having 3 weeks of 10 days. There are 12 months with 30 days each. Also, there’s extra 5 days at the end of the year, so total is 365 days. In the 4th century BCE, Egyp;ans switched Lunar calendar into civil calendar. Intrcalaton Sothic returns to its place every 1460 years. As a result, in Egyp;an calendar, 1 year of every 1460 years is empty, which is same as 1 day per 4 years. Consequently, Egyp;ans inserted addi;onal day every 4 years. That’s why we have leap days. Broadcasting Julius Caesar got a idea from Egyp;an civil calendar and As ;me go on, there was a huge used in Roma, which was called error in ;me. The year was actually, Julian calendar. 365. 2495 days, so 10 days were geng faster. Therefore, Pope Gregory XIII made the new calendar, Gregorian Calendar. S;ll, Julian or Gregorian calendar is not so different from civil calendar because Egyp;an calendar is the origin. Thanks for Reading • Egypt – hp://egyp`ravel-tours.net/icons/nav/egyptpackages.jpg • Moon – hp://www.planetsforkids.org/upload/-moon-a.jpg • Sirius – hp://www.crystalinks.com/siriusbluestar.jpg • Feb 29th – h`p://4.bp.blogspot.com/-mE_d6QaxRJ8/T03-xdyfa3I/AAAAAAAAEZI/jGCwjw5UOHQ/s1600/feb.29.jpg • Agriculture – hp://upload.wikimedia.org/wikipedia/commons/4/41/India_Farming.jpg • King Djer – h`p://upload.wikimedia.org/wikipedia/commons/thumb/b/b5/Djer_stela_retouched.jpg/200px- Djer_stela_retouched.jpg • Egyp;an calendar – hp://www.;mecenter.com/pages/ar;cles/old-egyp;an-calendar-in-karnak-temple.jpg .