Final answer:
Chief Tecumseh, Sacagawea, Frederick Douglass, Harriet Tubman, Andrew Jackson, and John C. Calhoun are all significant figures in American history.
Step-by-step explanation:
The subjects you mentioned are significant figures in American history.
Chief Tecumseh was a Shawnee war chief who led the Native American resistance against westward expansion in the early 19th century.
Sacagawea was a Shoshone woman who served as a guide and interpreter for the Lewis and Clark expedition.
Frederick Douglass was an African American social reformer and abolitionist who escaped from slavery and became a prominent advocate for the rights of African Americans.
Harriet Tubman was an African American abolitionist who played a key role in the Underground Railroad, helping enslaved people escape to freedom.
Andrew Jackson was the 7th President of the United States known for his role in the forced relocation of Native Americans known as the Trail of Tears.
John C. Calhoun was a prominent politician and pro-slavery advocate who served as Vice President under Andrew Jackson and advocated for states' rights.