Answer:
Born into slavery in Maryland, Harriet Tubman escaped to freedom in the North in 1849 to become the most famous "conductor" on the Underground Railroad. Tubman risked her life to lead hundreds of family members and other slaves from the plantation system to freedom on this elaborate secret network of safe houses.
Marcellus believes that the ghost of King Hamlet has been appearing, but Horatio does not believe that could be possible.
Marcellus brings Horatio out in hopes that the ghost will appear again that night so Horatio can see it with his own eyes and finally believe what they've been saying.
