John Leguizamo’s “Latin History for Morons” started out as a search for a Latin hero that his son could write about for a history project. He came to realize that these heroes had been written out of textbooks and whitewashed out of popular knowledge. He had to do something about that. Directed by Tony Taccone, Leguizamo’s one-man play traces the misunderstood, misremembered and marginalized history of Latinos in America from the Aztecs and Incas to the Revolutionary and Civil Wars all the way to modern-day heroes like Pitbull. Yes, the rapper.