What was the
Underground
Railroad(not an actual
railroad)?

No, the underground railroad was not an actual railroad.

Explanation:

It was a secret network of routes and safe houses used by black slaves in the U.S. to escape to free states or canada with the help of abolitionists who had sympathy to their cause.

lee and grant, both of whom held the highest rank in their respective armies, had known each other slightly during the mexican-american war (1846-48) and began their dialogue by exchanging awkward personal inquiries. characteristically, grant had arrived in his mud-splattered field uniform while lee had turned out in full dress attire, complete with sash and sword.

explanation: