Welcome to the NavList Message Boards.


A Community Devoted to the Preservation and Practice of Celestial Navigation and Other Methods of Traditional Wayfinding

Compose Your Message

Add Images & Files
    Re: Leap year
    From: Doug Bamford
    Date: 1999 May 09, 23:25 EDT

    Thanks my man, I obviously missed that one too.
    Now it all makes some sense.
    I appreciate you all moving with us slowpokes too.
    -----Original Message-----
    From: Chuck Taylor <ctaylor@XXX.XXX>
    Date: Sunday, May 09, 1999 12:50 PM
    Subject: Re: Leap year
    >On Sun, 9 May 1999, Doug Bamford wrote:
    >> Why is 1800 not a leap year? I always thought the method of
    >> was the year must be divisible by 4.
    >> 1800 is in that category, is it not?
    >It takes ~365.24 days for the earth to complete its orbit around the sun.
    >If it were exactly 356.25 days, then making every 4th year a leap year
    >would make things come out even. That was the premise of the Julian
    >calendar, which was used from the time of Julius Caesar to the mid 1700's.
    >The problem was that the extra 0.01 day threw things off over time and the
    >calendar and the seasons drifted out of alignment. Hence, the Gregorian
    >calendar, named for the pope at the time. The rules are now:
    >1. Years divisible by 4 are leap years, except
    >2. Years divisible by 100 are NOT leap years, except
    >3. Years divisible by 400 ARE leap years.
    >So, 1800 and 1900 were not leap years, but 2000 will be a leap year.
    >Chuck Taylor
    >Everett, WA, USA

    Browse Files

    Drop Files


    What is NavList?

    Join NavList

    (please, no nicknames or handles)
    Do you want to receive all group messages by email?
    Yes No

    You can also join by posting. Your first on-topic post automatically makes you a member.

    Posting Code

    Enter the email address associated with your NavList messages. Your posting code will be emailed to you immediately.

    Email Settings

    Posting Code:

    Custom Index

    Start date: (yyyymm dd)
    End date: (yyyymm dd)

    Visit this site
    Visit this site
    Visit this site
    Visit this site
    Visit this site
    Visit this site