Answer:
Greeks invented democracy
Height of the Roman empire
Middle ages in Europe
Renaissance
Industrial revolution
WWII
Explanation:
Greeks invented democracy in Athens in 6th BC.
Roman Empire was at the height of its power in 2nd Century AD.
Middle Ages lasted from 5th until 15th Century.
Renaissance developed after the Middle Ages, in 15th and 16th Century.
Industrial Revolution started in 18th Century, while WWII lasted from 1939 until 1945.
