Byzantines Discover America

A month ago, Josh and I were talking about story ideas, and I mentioned "Byzantines Discover America" as a setting. Josh liked that idea, so we spent a fair amount of tonight chatting about what year the Byzantines would depart, and what would be happening in the Mediterranean at the time--Roger de Flor and the Catalan Company, the Seventh Crusade, the Principality of Achaea, and so forth. Slightly esoteric, but fun.