Why the map get this direction as we see today?

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Maps traditionally display north at the top due to historical conventions and practical navigation needs. The North Star, which remains fixed in the sky, is often cited as a key reference point for orientation. Initially, many Western maps featured east at the top, but the shift to north became standard with the advent of the Mercator projection, which aligns with the northern hemisphere's prominence and the compass's north-pointing needle. This orientation is intuitive for navigation, as it aligns with human perception of direction. The Mercator projection, while distorting areas at the poles, preserves angles, making it useful for maritime navigation. The discussion also touches on how the Earth's rotation influenced the decision to position north at the top, reinforcing the idea that maps reflect both geographic and cultural perspectives.
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In all map, we always see the north on top, why's that? when was this way first used? Anybody know?

Thanks
 
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my guess is that the North Star is the one orientation point that never moved. looking at it, east would be on your right. but that's just a guess, i have no idea.
 
Yes, it seems that the most common maps are upside down. However, some maps are printed correctly:
http://flourish.org/upsidedownmap/mcarthur-large.jpg"
 
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Historically in the West, maps were produced with east on top. See Wikipedia http://en.wikipedia.org/wiki/T_and_O_map" .
 
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Could it be that Mercator projection requires maps to be orientated North South and if you live in the Northern hemisphere it is easier if the North Pole is at the top of your globe?
 
Changing which end is at the top is as easy as turning the map sideways.

Equivalently, turning the globe sideways when you begin the projection.

I assume the north is top thing is a combination of the fact that most of the world lives in the northern hemisphere, and that compasses point north
 
On a Mercator projection the bits at the top and bottom of the map are very distorted so turning the globe on its side would cause lots of problems.
 
Eh. If it's 1600 and you live in Europe do you really care if China and the North America are stretched out?
 
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Office_Shredder said:
Eh. If it's 1600 and you live in Europe do you really care if China and the North America are stretched out?

It reminded me of American world map :smile::
http://www.thetruckersreport.com/truckingindustryforum/attachments/the-world-is-a-joke/4373d1243693805-american-world-map-472f2713d9a0famerican_world_map16.jpg
 
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  • #10
Its because a compass needle points north (or up) and its more intuitive to human nature that an arrow would point up or forward rather than down.
 
  • #11
Topher925 said:
Its because a compass needle points north (or up) and its more intuitive to human nature that an arrow would point up or forward rather than down.
Nah, the compass needle could go either way depending on how you put the magnetization.

My guess would be that when they discovered that Earth is rotating they thought that it would be proper to put the axis of rotation as the proper up/down and then by arguing "We are of course on the top half of the world!" north went to the top.
 
  • #12
If it's 1600 and you want to navigate your ship to China or America, then yes it matters quite a lot if China and America are stretched out.
 
  • #13
Well that's not strictly true. The point of mercator projection is that it preserves angles so you still know the right direction to go in.
 
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