30. The descendants of the Aztecs speak a form of the Aztec language called Nahuatl. Many of its words, particularly for types of food, passed into English…such as tomatoes (tomatl), chocolate (chocolatl), and avocados (ahuacatl).
The official name of Mexico is Estados Únidos Mexicanos
Don't be surprised if you get funny looks when you tell people in Mexico . . .