Match historical events with the people who accomplished them during the Westward Expansion era.

Problem Overview:

The task is to match each historical event with the person(s) who accomplished them. The events and people are listed, and we need to correctly pair them based on historical knowledge.

Historical Events and People:

- Events:
1. Signed into law the Indian Removal Act of 1830.
2. Worked as an interpreter and a guide for the Lewis and Clark Expedition.
3. A senator and representative from Kentucky; strong opponent of declaring war against Mexico in the Mexican-American War.
4. Made the first journeys by citizens of the United States to the west coast and the Pacific Ocean.
5. 10th president of the United States and author of the Doctrine that stated the U.S. would not tolerate European intervention or colonization in the Americas.
6. Purchased the Louisiana Territory from France.
7. A senator from South Carolina and vice president under two different presidents; a strong supporter of states' rights.

- People:
- Andrew Jackson
- John C. Calhoun
- Henry Clay
- James Monroe
- Sacagawea
- Thomas Jefferson
- Lewis and Clark

Solution:

#### Event 1: Signed into law the Indian Removal Act of 1830.
- Person: Andrew Jackson
- Explanation: Andrew Jackson was the 7th President of the United States (1829–1837) and signed the Indian Removal Act of 1830, which authorized the forced relocation of Native American tribes from their ancestral lands in the Southeast to territories west of the Mississippi River. This act led to the infamous Trail of Tears.

#### Event 2: Worked as an interpreter and a guide for the Lewis and Clark Expedition.
- Person: Sacagawea
- Explanation: Sacagawea was a Shoshone woman who served as an interpreter and guide for the Lewis and Clark Expedition (1804–1806). Her knowledge of the land and her ability to communicate with Native American tribes were crucial to the success of the expedition.

#### Event 3: A senator and representative from Kentucky; strong opponent of declaring war against Mexico in the Mexican-American War.
- Person: Henry Clay
- Explanation: Henry Clay was a prominent American statesman from Kentucky who served as a Senator and Representative. He was a leading figure in the Whig Party and opposed the declaration of war against Mexico during the Mexican-American War (1846–1848).

#### Event 4: Made the first journeys by citizens of the United States to the west coast and the Pacific Ocean.
- Person: Lewis and Clark
- Explanation: Meriwether Lewis and William Clark led the Corps of Discovery Expedition (1804–1806), which was the first overland journey by Americans to explore the western United States, reaching the Pacific Ocean. They traveled from Missouri to Oregon and interacted with many Native American tribes along the way.

#### Event 5: 10th president of the United States and author of the Doctrine that stated the U.S. would not tolerate European intervention or colonization in the Americas.
- Person: James Monroe
- Explanation: James Monroe was the 5th Secretary of State and the 5th Secretary of War before becoming the 5th Vice President and later the 5th President of the United States (1817–1825). He is best known for authoring the Monroe Doctrine in 1823, which declared that the United States would not tolerate further European colonization or intervention in the Americas.

#### Event 6: Purchased the Louisiana Territory from France.
- Person: Thomas Jefferson
- Explanation: Thomas Jefferson was the 3rd President of the United States (1801–1809) and oversaw the Louisiana Purchase in 1803. This acquisition doubled the size of the United States, adding territory that stretched from the Mississippi River to the Rocky Mountains.

#### Event 7: A senator from South Carolina and vice president under two different presidents; a strong supporter of states' rights.
- Person: John C. Calhoun
- Explanation: John C. Calhoun was a prominent American politician from South Carolina who served as a Senator, Vice President under both John Quincy Adams and Andrew Jackson, and as Secretary of State. He was a staunch advocate of states' rights and nullification, opposing federal authority over state matters.

Final Answer:

1. Andrew Jackson — Signed into law the Indian Removal Act of 1830.
2. Sacagawea — Worked as an interpreter and a guide for the Lewis and Clark Expedition.
3. Henry Clay — A senator and representative from Kentucky; strong opponent of declaring war against Mexico in the Mexican-American War.
4. Lewis and Clark — Made the first journeys by citizens of the United States to the west coast and the Pacific Ocean.
5. James Monroe — 10th president of the United States and author of the Doctrine that stated the U.S. would not tolerate European intervention or colonization in the Americas.
6. Thomas Jefferson — Purchased the Louisiana Territory from France.
7. John C. Calhoun — A senator from South Carolina and vice president under two different presidents; a strong supporter of states' rights.

$$
\boxed{
\begin{array}{ll}
1. & \text{Andrew Jackson} \\
2. & \text{Sacagawea} \\
3. & \text{Henry Clay} \\
4. & \text{Lewis and Clark} \\
5. & \text{James Monroe} \\
6. & \text{Thomas Jefferson} \\
7. & \text{John C. Calhoun} \\
\end{array}
}
$$