Why was the louisiana purchase important?

In 1956, people in demanded that soviet troops to be removed as the part of a call for democratic reforms

Historians have recently discovered a historical journal published in the early twentieth century. the journal contains facts based on original sources about the downfall of the early byzantium empire. historians consider this long-lost journal to be a breakthrough in their understanding of the byzantium empire. based on this information, the journal is a source.

Who was the first explorer to sail all the way down the mississippi river