REMOVE

1. Mexico history
2. Mexico City, Mexico

WHAT

1. Martinez, Emanuel (Americ … (2)
2. history (discipline) (2)
3. Aztec (culture or style) (1)
4. Aztec, The World of Mocte … (1)

WHERE

1. Mexico (nation) (2)
2. Colorado (state) (1)
3. Denver, Colorado (1)
4. Dolores, Mexico (1)

WHO

1. Martinez, Emanuel (2)
2. Gallo, El (1)
3. Gutierrez, Hector (1)
4. Hernandez, Romel (1)
5. Jackson, Robert (1)

WHEN

1. 1960s (1)
2. 1990s (1)