Turns out, not only is it from a poorly researched alternate history fiction, it's from an unfinished, unpublished, as yet unwritten, poorly researched alternate history fiction.
At this point I'm starting to wonder how the 2015 mark got past the person who shared it and then started to wonder how many other people had shared it with remarks about how #NativeLivesMatter and how the white historians are keeping this map out of academia ; so I went to twitter, searched for #BeforeAmerica and found that since about twelve hours ago, this little image and it's right on message, has been slowly spidering its way across the twitterverse. Each share, more shocked that they hadn't been "taught this at school" than the last, each one more supportive of the Native peoples, who's map colonialism destroyed, than the last.
Me being me, I've gone and told every last one of them that if they genuinely cared about the native peoples of the Americas that they'd have recognized the obvious fiction far quicker than me.
If they really supported the native Americans they'd have known that the Apache as people didn't exist until horses were imported from Europe, they'd have know that the Maya, Olmec, and Aztec weren't contemporary with each other, they'd have known that the Anasazi culture died out by the 1300s.
Basically I caught some idiots in the wild, uncritically sharing something because it fits their narrative, and I textually stamped on them. Hopefully this'll be an end to the travels of this image.
Update: It wasn't an end to it :(
But as they say, If you can't beat them, join them.
UPDATE: 09/03/16
In the last week or so, this shit has reappeared, only in black and white this time, because that totally makes it more legitimate. *sighs*
It looks like this now
