In 5 sentences, what is the main idea of the trail of tears and why is important to learn about?

The main idea of the Trail of Tears in 1838 and 1839 was to force the Cherokee nation to give up its land in the Mississippi river and migrate to present Oklahoma, as part of Andrew Jackson's Indian removal policy, this way the white settlers could grow cotton on the Indians land. It is important to learn about it to enforce the laws and protect the rest of the indigenous civilization in modern days