1). What was the extent of the Russian Empire's expansion between the 9th century and the end of the 17th century?

A: The Russian Empire's expansion extended to the Pacific Ocean by the end of the 17th century.

2). What were the origins of the Soviet Union?

A: ?
(I am uncertain of what this question is asking).

3). How did the Soviet Union come to an end?

A: The Soviet Union ended when Soviet leader Mikhail started to give more economic and political power freedom to the Soviet people, which began a process that led to the collapse of the Communist government and the Soviet Union.

5 answers

2. How did the Soviet Union start?

http://www.realussr.com/soviet-union-timeline/

http://encyclopedia.kids.net.au/page/so/Soviet_Union#History
2. The Soviet Union begun when the Communist Party has organized the different peoples absorbed during the centuries of Russia's imperial expansion.
Yes -- but your answer is not complete. Read the first paragraph under history in the encyclopedia article above.
The Soviet Union begun when the Communist Party had organized the different peoples absorbed during the centuries of Russia's imperial expansion,the Russian Revolution and a civil war?
Not exactly. Please go back and read that paragraph again.