👉 Julian computing is a method of timekeeping that uses a 365.25-day year, divided into 12 months of 30 days each, with an additional five days added periodically to keep the calendar aligned with the solar year. This system was developed by Julius Caesar in 45 BCE to improve upon the Roman calendar, which was often inaccurate due to its lunar basis. The Julian calendar introduced a leap year every four years, adding an extra day (February 29) to account for the extra fraction of a day in the solar year, making it more accurate than its predecessor and laying the groundwork for the modern Gregorian calendar still in use today.
