In what way did th stations in the underground-railroad liberate the enslaved people

An important accomplishment of the chinese during the han dynasty was the a. invention of paper. b. production of bronze tools. c. construction of the great wall. d. building of royal tombs.

Select the correct answer from the drop-down menu.during the (scientific revolution, renaissance, industrial revolution), european intellectuals rejected many teachings of ancient scientists promoted by the church. to replace flawed theories, scientists began researching and conducting experiments. they used critical and reasonable thinking to draw concrete conclusions. this also led to the (scientific revolution, industrial revolution, enlightenment). it was an age that focused on using reason for understanding laws of nature and identifying humans' natural rights.

Which would make the best heading for this list of notes about the migration of african-americans during the reconstruction era?