Who invented Leap Years?

  • Marcus Aemilius Lepidus
  • Julius Caesar correct

    Julius Caesar introduced Leap Years in the Roman empire over 2000 years ago. Before Caesar came to power, the Romans used a calendar system based on the lunar cycle, which dictated that there were 355 days in a year. This system was 10 ¼ days shorter than a solar year, the amount of time required for the Earth to make one complete revolution around the sun. After consulting with the astronomer Sosigenes, Caesar implemented a new system, the Julian calendar, which went into effect in 45 B.C. and was made up of 365 days in a year. The calendar was intended to be in sync with the solar cycle; however, because the actual solar year is 365 ¼ days long, Caesar also added an extra day, called a leap day, every four years to make up the difference. The Julian calendar remained the standard until the late 16th century, when a slightly modified version of the system, known as the Gregorian calendar, was introduced. Today, the Gregorian calendar is the world’s most widely used civil calendar.

  • Roger Bacon
  • Quintus Fufius Calenus
  • ON A DAY
  • Fact of the day

    Knitting was initially a male-only occupation.
  • This day in 1996

    President Bill Clinton's former business partners in the Whitewater land deal, James McDougal and Susan McDougal and Arkansas Governor Jim Guy Tucker, are convicted of fraud for the Whitewater Development Corporation

    • Christopher Lee

      London, England
    • Henry Kissinger

      Bavaria, Germany
    • Joseph Fiennes

      48 years old | Salisbury, Wiltshire
    • Lee Meriwether

      83 years old | Los Angeles, California