What was the most important result of the Louisiana Purchase?

It allowed full control of the mississippi river. Proved to be the most important result of the louisiana purchase. to find out if there was and all water route to the pacific ocean. One reason Jefferson sent the corps of discovery into louisiana.

Explanation:

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judaism developed through the growth of a single nation of people

christianity developed through followers spreading the religion throughout the world.

explanation:

the correct answer is:   the domino theory states that if one country in a region came under the influence of communism, then the surrounding countries would follow in a domino effect.