A key difference between the Greek city-states and the city-states of Mesopotamia, or the city-states of Mesoamerica, was that "<span>a. Most of the Greek city-states developed direct democracies," since democracy was actually "invented" in Ancient Greece. </span>
That way they could rule over the people, Please mark brainliest.
I believe it was the use of poisonous gasses, which they not only used on the Jews but in war too......., or The newly created Machine gun<span />
Answer:
20. <u> Camillo di Cavour</u> Worked to bring about the unification of Italy.
*I can't see the options for 21*
