Aug 11, 2026Discover how the 7-day week began over 4,000 years ago in ancient Babylon and its historical spread worldwide.

Jul 29, 2026Discover how ancient civilizations used natural cycles and celestial observations to measure the length of a year accurately.

Jul 28, 2026Discover the oldest known calendar, the Sumerian lunar-solar calendar from Mesopotamia dating back to 21st century BCE.

Jan 7, 2026Discover the fascinating history of the seven-day week and the naming of days from Monday to Sunday, rooted in ancient Mesopotamia.

Dec 31, 2025Explore how ancient civilizations used sundials to measure time, the origins of timekeeping, and its evolution over the centuries.

Dec 11, 2025Discover how ancient civilizations used celestial events to track time with sundials and more. Learn the origins of timekeeping!