What monumental projects did the Olmec undertake?
What advancement in ship technology enhanced trade in the Bronze Age?
What civilization implemented an alphabet based on sound? (Totally not in the videos, but I like this civilization and couldn't bring myself to delete the question...)
What was NOT a reason for increased warfare?
The largest group in early societies was the ________________________.
What crop was grown by the Olmecs?
Which metal was more difficult to control use of and trade of, considering it was more prevalent? (But it took longer to develop because it utilizes higher heat levels to mold)