Fan Nickname: As might be expected, fans like to shorten the names of the world's legendary leaders when typing them out, so Alexander the Great becomes "Alex", Catherine the Great becomes "Cathy", Montezuma becomes "Monty", etc.
Firaxis was originally planning on including the Pueblo as a playable civilization in Brave New World, and had picked out a unique unit, a unique tile improvement, and a leader in the form of Popé. However, when it came time to find a Pueblo-speaking voice actor to portray Popé, they ran into stiff opposition from the Pueblo Council, who took offense at the idea of one of their cultural heroes being portrayed in the game. (Pueblo culture has strong taboos concerning photography and other visual representations of people, feeling that improper displays disturb the spirit world.)
The Spanish and Arab civilizations were originally planned to be included with the first game but ended up being cut for unknown reasons. Both were included in later games, however.