Lewis and Clark's exploration of the Missouri River was very important for the westward expansion of the United States. For example, the information they gained

The correct answer to this open question is the following.

There is no question here, just a statement. If this is a true or false question, then the answer is "true."

It is true that Lewis and Clark's exploration of the Missouri River was very important for the westward expansion of the United States. For example, the information they gained.

The names of the explorers were Meriwether Lewis and William Clark. They explored the Louisiana Territory and kept detailed records of their findings.

After the Louisiana Purchase of 1803, US President Thomas Jefferson ordered the exploration of the unknown territories. The expedition was led by Meriwether Lewis and William Clark. The expedition started in 1804 and ended in 1806 when both explorers returned to Washington DC to inform President Jefferson of the results of the expedition.

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