Protestors of the Vietnam war were shot at and 4 were killed by the Ohio National Guard
The tradition of building a ziggurat was started by the Sumerians, but other civilizations of Mesopotamia such as the Akkadians, the Babylonians, and the Assyrians also built ziggurats.
Cincinnatus
Part of the Roman Republic
I haven't been in a history class 4 years you may want to fact check it
Answer:
the answer is b the columbian exchange
Explanation: