I mean, if today i.e. is Sunday then someone long time ago should have said “Today will be Sunday” for the first time in a period from today that is multiple of seven. I was assuming that it was Pope Gregory XIII in October 1582, but looks like he is not. I failed in googling and duckduckgoing out the answer, so I ask for Lemmy’s collective wisdom!

EDIT: so question is not about the origin of 7-day week and sequence of weekday names, but about the exact reference point (day) of today’s weekday countdown. From when have people stopped adding or ommiting any adjustment ‘out-of-week’ days (like in Babylon or Rome) and kept counting to seven till today? In other words, there should be a point exactly N x 7 days ago from which the 7-day countdown has not been interrupted. Or at least the earliest known day in history that everyone on Earth agreed upon as a reference point

EDIT 2: Solved by https://lemmy.world/comment/1852458 Thanks everyone!

  • psycotica0@lemmy.ca
    24·
    1 年前

    Ok, let me rephrase your rephrase to be what question I think you’re trying to ask.

    At some point we had decided on a seven day week with week names. That’s fine. But we must also have decided at some point that today was Wednesday in this system.

    So I think you’re asking “what is the first day we all agree was definitely a Sunday, such that all Sundays after were based on that”. Or put another way, at what point did the days of the week get locked to the days of our year.

    I don’t have that answer, but your question confused me, so I’ve reworded it.

    • wAkawAka@lemmy.worldOP
      61·
      1 年前

      Yeah, thanks, that’s pretty much it! Except we cannot really make days of the week get locked to the days of our year because 365 is not divisible by 7, and we’re adding 1 day to February every 4th year on top of that.

      • jerkjaguar@lemmy.world
        91·
        1 年前

        Your phrasing on this post was confusing af. The other poster clarified it and then you just made it confusing af again with this response. Thanks

      • Valmond@lemmy.ml
        2·
        1 年前

        And every 400 year we don’t add the extra day, except every 2000 year when we do it anyway.

        • Jadey@feddit.nl
          1·
          1 年前

          the numbers for this are skip every 100 years except every 400 years but yeah it’s kinda wack