Around 1500 b. c.e., which group in middle america (mesoamerica) began developing large cities, including gigantic pyramids

The Mayan. This is considered one of the largest cultures in the American Continent due to its knowledge of science, astrology and much more. This civilization was born during the third millennium BC, living in a territory of 320,000 square kilometers, living in regions of Mexico, Guatemala, Honduras, Belize and part of El Salvador.

Try to go online and find the answer