The ancient Egyptian calendar consisted of 365 days without a leap year, causing the festival to "wander across the climatic seasons," explained Juan Antonio Belmonte, an expert cited by CNN Greece.

The Egyptian calendar was created around 4,800 years ago. It had 365 days in a year but no leap year. Therefore, the day of Wepet Renpet was subject to change based on the climactic seasons.

Introduction: under ancient Egyptian skies / Mosalam Shaltout & Juan Antonio Belmonte -- The historical background / Magdi Fekri -- Astronomical historiography in four movements / Miguel Ángel ...

According to the 2022 paper, the builders of Stonehenge not only learned about the Egyptian calendar, but improved upon that calendar 2,600 years before the Romans did — a claim that is without ...

Researchers previously thought the calendar ring on the Antikythera mechanism tracked the ancient Egyptian calendar, but new research suggests it tracked the Greek lunar calendar instead.

Object Details Author Richards, E. G (Edward Graham) Contents pt. 1. Calendar in theory -- ch. 1. Calendar -- ch. 2. Astronomical background -- ch. 3. Time and the clock -- ch. 4. Writing and ...