The Soviet Union didn't fall until 1991.
treaty of paris of 1783 formally ended the American revolutionary war in the fall 1781 American & British troops fought the last major battle of the American revolutionary war in Yorktown Virginia
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<span>When Lewis and Clark went on their expedition they talked to the natives about the government and attempted to make friends. They treated the natives well and gave them lots of gifts. They wanted to facilitate a good relationship and friendship.</span>