The deciphered scroll presented a very advanced 364-day solar calendar that the Qumran sect ... the challenging process of reconstructing the ancient text, stated The Guardian.

Feb. 29 is more than just an extra day we have once every four years. There is some science behind it. Here's how leap days ...

The Chinese Agricultural Calendar uses lunar months to determine its dates, but it also has “solar terms” which are based on the solar year. These solar terms helped the ancient Chinese people ...

The two most common calendars were the 260-day festival calendar and the 365-day solar calendar. The correlation between the two occurs every 52 years when both begin their new years. This is called ...

The ancient Egyptian calendar consisted of 365 days without ... This lack of synchronization with the solar year meant that over time, the festival occurred at different times of the year.

provides insight into the celestial knowledge of ancient China. Adorned with characters, they focus on the Tiangan Dizhi, an intricate astronomical calendar system from the Shang dynasty.

Ancient Egyptian: What have you got in this linen sack thing anyway? Oh, a calendar! Now that is useful. It’s similar to our own solar calendar which has 365 days in it. You do have bread at least!

Japanese researchers investigated ancient texts from the 4th to 7th centuries CE to identify five ... [+] total solar eclipses near the Eastern Mediterranean. Yes, Earth is suddenly spinning faster.