I'm going to get 1493 next time I order from Thrift Book. 1491 was interesting to me about the Bronze Age, didn't know that most of the world doesn't have native copper(like the Americas) only types of copper ore. So without the coming to America the Bronze Age wouldn't have ocured as early as it did, since the old world only had abundant tin.I also read 1491 ... but I like 1493 better because of its more anecdotal style, and it contains much more information regarding the global economic and ecological impact of the event.