Threaded index     Date index     FAQ


You know, but for a quirk of fate...

Posted by Manstuprator on 2026-June-17 00:41:09, Wednesday
In reply to That's thermal underwear I think posted by slvrspun on 2026-June-16 22:32:05, Tuesday

... you could be feeling on top of the World!

PROMPT:
Why did ancient cartographers determine the placement of north/south as they did?

RESPONSE:
Space has no "up" or "down"; map orientation was driven by culture, geography, and utility.

Ancient cartographers did not always put north at the top of maps; instead, they chose map orientations based on local geography, religious beliefs, solar patterns, and the political seat of power. The standardization of "North-up" is a relatively modern convention.

Historical Proof Breakdown

  • East-Up: The word "orientation" comes from the Latin oriens (East). Medieval European maps like the Hereford Mappa Mundi put East at the top to honor Jerusalem and the sunrise.

  • South-Up: Ancient Egyptians put South at the top because the Nile flows downhill from the southern mountains. Medieval Islamic cartographers like Al-Idrisi placed South at the top so Mecca sat physically above Europe and Asia.
  • North-Bottom: Early Chinese maps placed North at the bottom so subjects reading the map looked "up" toward the northern seat of the Emperor.
  • North-Up Victory: Ptolemy used North-up because the known world fit best on scroll coordinates using the North Star. Gerardus Mercator adopted this in 1569 for his naval trading charts, standardizing it worldwide.





I always wondered about that... and now I know!

AI is great!

M.
Except when it's not... :-/



Follow ups:

Post a response:

Nickname:

Password:

Email (optional):
Subject:


Message:


Link URL (optional):

Link Title (optional):


Add your sigpic?

Here are Seven Rules for posting on this forum.

1. Do not post erotica or overly-detailed sexual discussions.
2. Do not request, offer, or post links to illegal material, including pictures.
3. Don't annoy the cogs.
4. Do not reveal identifying details about yourself or other posters.
5. Do not advocate or counsel sex with minors.
6. Do not post admissions of, or accuse others of, potentially illegal activities.
7. Do not request meetings with posters who are under age 18.

Posts made to BoyChat are subject to inclusion in the monthly BoyChat Digest. If you do not want your posts archived in the BC Digest, or want specific posts of yours removed after inclusion, please email The BC Digest.