The United States purchase of the Louisiana Territory in 1803 was geographically important because it:

provided full access to the Mississippi river

Explanation:

The Louisiana Purchase almost doubled the size of the country. It was unexplored but had millions of acres of fertile farmland and other natural resources. It also gave the US control of the Mississippi River.

in the 1950s, country music came into its own before rock-n-roll took off in the 60s while jazz and classical music continued to innovate

explanation:

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