Without specific intention, I seem to have turned into a Roger Crowley fanboy, as shown by that I have now read every one of his books. Crowley is a British maritime historian, all of whose books are tied to the Mediterranean in the pre-modern portion of the second millennium, many centering around the interaction of Christianity and Islam. Conquerors is somewhat of a departure—still a maritime history, even more so than most of his books, but focused not on the Mediterranean, instead on the nearly unbelievable accomplishments of the Portuguese in the Atlantic and Indian Oceans between 1490 and 1520. Crowley makes the colorful, dramatic, and heroic deeds of the Portuguese leap off the page.