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Ancient Egypt's solar calendar of 365 days — twelve months plus five extra days — tied to the Nile flood and the stars, and an ancestor of the calendar we still use.تقويم مصر القديمة الشمسي المكوّن من 365 يومًا — اثنا عشر شهرًا وخمسة أيامٍ إضافية — مرتبطٌ بفيضان النيل والنجوم، وجدٌّ للتقويم الذي ما زلنا نستعمله.
One of ancient Egypt's most influential inventions was its calendar. Thousands of years ago, the Egyptians worked out a solar year of 365 days — twelve months plus a handful of extra days — one of the earliest practical calendars in history. Rooted in the rhythm of the Nile and the movement of the stars, it organised farming, festivals, and government, and its basic shape flowed down the centuries to become an ancestor of the calendar hanging on our walls today.
من أكثر اختراعات مصر القديمة تأثيرًا كان تقويمها. فقبل آلاف السنين، توصّل المصريون إلى سنةٍ شمسية من 365 يومًا — اثنا عشر شهرًا وحفنةٌ من الأيام الإضافية — أحد أقدم التقاويم العملية في التاريخ. ومتجذّرًا في إيقاع النيل وحركة النجوم، نظّم الزراعة والأعياد والحكم، وانساب شكله الأساسي عبر القرون ليصبح جدًّا للتقويم المعلّق على جدراننا اليوم.
A Calendar from the Nile & Stars · تقويمٌ من النيل والنجوم
Time measured by river and sky.زمنٌ يُقاس بالنهر والسماء.
The Egyptian year was built around two great natural clocks: the annual flooding of the Nile and the night sky. The new year was marked by the heliacal rising of the star Sirius (Sopdet), which appeared just before the flood arrived to renew the fields. The year was divided into three seasons — Akhet (the flood), Peret (the growing season), and Shemu (the harvest) — each tied directly to the cycle of the river that gave Egypt life.
Twelve Months & Five Extra Days · اثنا عشر شهرًا وخمسة أيام
A neat system with one famous flaw.نظامٌ أنيق بعيبٍ واحد شهير.
The calendar had twelve months of thirty days each — making 360 — plus five special "extra" days added at the year's end to reach 365, celebrated as the birthdays of the gods. It was elegantly simple, but it had one flaw: the true solar year is about a quarter-day longer, and without a leap day the Egyptian calendar slowly slipped against the seasons, drifting a full day every four years — the so-called "wandering year." Later reforms finally added a leap day to keep it in step.
Echoes Today · أصداءٌ حتى اليوم
A direct line to our own year.خطٌّ مباشر إلى سنتنا.
The Egyptian 365-day solar year was so sensible that it shaped what came after. Through the Greeks and Romans — whose Julian calendar adopted the 365-day year with a leap day — it became the direct ancestor of the Gregorian calendar used around the world today. Every time we count a 365-day year, we are using an idea first worked out on the banks of the Nile. The Egyptians' skill in astronomy made this remarkable achievement possible.
Quick Facts · حقائق سريعة
Sources include standard works on ancient Egyptian astronomy and timekeeping.