an apparent contradiction
What is Mesoamerica?
a developed, sophisticated society with large villages and temple complexes.
Who are the Olmecs?
the act of legally freeing an enslaved person
developed a large system of irrigation canals, using the Gila and Salt Rivers as their water supply.
Who are the Hohokam?
an alliance for mutual support or common action
this civilization had a talent for engineering, astronomy, and mathematics. they developed calendars, and the number system.
Who are the Mayans?
the exchange and interaction of crops, animals, plants, culture, populations, and diseases.
What is the Columbian Exchange?
a time when nomadic people learned how to farm
What is Agriculture Revolution?