Guide to figuring out the age of an undated world map

[chays]

I cannot attest to the veracity of this flowchart.
http://xkcd.com/1688/large/

[sbeaver44]

Great comic.  He loves to bring up that Jimmy Carter Swamp Rabbit Incident whenever he gets the chance.

There is discussion of the veracity on Explain XKCD for that comic.  Don't have the link handy.

[chays]

There is discussion of the veracity on Explain XKCD for that comic.  Don't have the link handy.

https://www.explainxkcd.com/wiki/index.php/1688:_Map_Age_Guide

It's amazing how much free time people have on their hands, that they can devote that much effort to this!