The Harmony of the Stars and the Nile: The History of the Egyptian Calendar

Abstract

In Ancient Egypt, the calendar system was closely connected with astronomical observations and the annual flooding of the Nile.  The heliacal rising of Sirius marked the beginning of the Nile’s inundation and the new year.  The Egyptian civil calendar consisted of 365 days, demonstrating one of the earliest developments in solar timekeeping.  This system played a crucial role in agriculture, religious rituals, and state administration.  The article explores the historical formation of the Egyptian calendar, its astronomical foundations, and its socio-economic significance.