Grade 8History

Lewis and Clark Chart the Louisiana Territory

In Grade 8 U.S. History, students study the Lewis and Clark Expedition (1804-1806), commissioned by President Jefferson to explore the newly acquired Louisiana Territory. Led by Meriwether Lewis and William Clark, with the essential assistance of Sacagawea, the expedition mapped the region, established relations with Native nations, and documented plants and animals of the American West. This topic appears in California myWorld Interactive Grade 8.

Key Concepts

After the Louisiana Purchase, President Thomas Jefferson commissioned an expedition to explore the vast new territory. He appointed Meriwether Lewis and William Clark to lead the group. Their mission was to map the land, document its natural resources, establish trade with Native American nations, and search for a water route to the Pacific Ocean.

The expedition, officially called the Corps of Discovery , journeyed from St. Louis to the Pacific coast. With crucial help from their Shoshone guide, Sacagawea, the explorers gathered extensive information about the West's geography, plants, and animals. Though they did not find a direct water route, their journey established a U.S. claim to the Oregon region , paving the way for future westward expansion.

Common Questions

What was the Lewis and Clark Expedition?

The Lewis and Clark Expedition (1804-1806) was a government-sponsored journey led by Meriwether Lewis and William Clark to explore the Louisiana Territory, map routes to the Pacific, and report on the land, peoples, plants, and animals.

Who was Sacagawea and why was she important?

Sacagawea was a Shoshone woman who served as interpreter, guide, and cultural liaison for the Lewis and Clark Expedition, helping the Corps of Discovery navigate, obtain horses, and establish peaceful contact with Native nations.

What did Lewis and Clark discover on their expedition?

Lewis and Clark documented hundreds of new plant and animal species, mapped river systems and mountain passes, made contact with dozens of Native American nations, and demonstrated the feasibility of overland travel to the Pacific.

What chapter covers Lewis and Clark in California myWorld Interactive Grade 8?

California myWorld Interactive Grade 8 covers the Lewis and Clark Expedition in its chapters on Jefferson's presidency and westward expansion.