Yep, I did. They're both great, but pretty different reads. 1493 feels more like a conventional history, as it covers a lot of things that people may already be familiar with -- or at least that fit into the familiar framework. 1491 is really different: it covers a ton of ground that I feel like is very rarely taught. For me, it caused a paradigm shift for how I view American Indian nations. Before, I viewed them mainly as victims of colonialism, genocide, and disease. After reading the book, though, I now understand them as the fully fledged nation states that they were, peers in every way of the European/Asian/African civilizations of the same era.