Although it was against the law to teach a slave how to read or write, Bradley learned literacy from his enslaver's children. Bradley was also good at mathematics, and showed a natural talent for making things. As a teenager, Bradley was put to work at an office where he built a working steam engine from pieces of scrap metal. Others were so impressed with Bradley's mechanical skills that he was given a job as an assistant in the science department at the United States Naval Academy in Annapolis, Maryland where he set up and helped conduct experiments. Professors at the Naval Academy were very impressed with Bradley, saying he was smart, a quick …show more content…
Just as there was disagreement over the issue of slavery, there was also disagreement over whether a slave should be allowed to hold a patent. Some people said anyone who came up with an original idea should be allowed to patent it. It should not matter whether that person was free or a slave. Others said that, because he, a slave, was his or her master's property, anything that a slave produced, including ideas, belonged to the master. In 1857, however, a slave owner named Oscar Stewart applied for a patent on something one of his slaves had invented. Stewart argued that he owned all the results of his slave's labor, whether that work had been manual. Despite the laws, the Patent Office agreed. The patent was granted, giving Stewart credit for the invention. The slave who actually came up with the idea (a cotton-processing device) is mentioned in the patent only as "Ned." Because of the decision in the Stewart case, the patent law was changed to say that a slave could not hold a patent. When the Confederate States broke away from the United States in 1861, the Confederate government surprised many people by once again allowing slaves to hold patents. After the Civil War, however, the patent law was changed again, specifying that all people throughout the United States had the right to patent their own inventions. Benjamin Bradley's cause of death was