What is the central idea of the text? Cite specific evidence from the text to support your answer. The text is The Underground Railroad from Commonlit

The central idea is about slaves getting freedom to the north using underground railroads

Explanation:

The central idea is about slaves getting freedom to the north using underground railroads. In the 1850's and 1860's, in the the United States, states in the South practiced slavery while states in the North did not allow for slavery. This lead to the establishment of underground railroad as a secret passage for slaves to escape from the South to go to the North in search of freedom.