Answer:
After Douglass’ attempt to escape slavery two years prior was betrayed by a fellow slave, he had been jailed, sent to Baltimore by his master and hired out to work in the city’s shipyards. Undeterred, Douglass vowed to try to escape again on September 3, 1838, although he knew the risk. “I felt assured that if I failed in this attempt, my case would be a hopeless one,” he wrote in his autobiography. “It would seal my fate as a slave forever.”
Douglass disguised himself as a free black sailor, a creditable ruse given the nautical knowledge he gained from working on the waterfront. The slave also knew that the deference shown to sailors in a seafaring city such as Baltimore could work to his benefit. He donned a red shirt and sailor’s hat and loosely knotted a black cravat around his neck. Into his pocket the slave stuffed a sailor’s protection pass, which he could present in lieu of the “free papers” that railroad officials required black passengers to carry as proof they were not enslaved. Douglass had borrowed the document from a free African American seaman, but he bore little resemblance to the physical description detailed on the piece of paper. Close examination by a railroad official or any authority would reveal the subterfuge and imperil both Douglass and his friend.
Hope this Helped :)