European civilization developed during the Middle Ages, the period roughly from C. E.
O 100 to 500
O 500 to 800
O 500 to 1500
O 800 to 1600

500 to 1400–1500 ce is traditionally known as the Middle Ages.

they are best known for the cliff pueblos found throughout arizona, new mexico, colorado and utah. and for their development of desert farming.

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the exclusive possession or control of the supply or trade in a commodity or service.