North America suffered far greater losses from smallpox and other introduced diseases, possibly bc of trade routes.
-
-
it was because they hadn't been exposed to draft animals - and associated diseases.
1 reply 0 retweets 0 likes
Replying to @AdamJWorkman @ClarkHat
Yes, that's what I'm saying. Diseases introduced in central America, spread north.
11:20 AM - 10 Oct 2016
0 replies
0 retweets
1 like
Loading seems to be taking a while.
Twitter may be over capacity or experiencing a momentary hiccup. Try again or visit Twitter Status for more information.
. Banned in Sweden. SubGenius, Zhuangist, white-hat troll. Defrocked mathematician. Brain problems.