March 23, 1873 – Slavery abolished in Puerto Rico. March 24, 1837 – Canada gives African American citizens the right to vote. March 25, 1843 – Explorer Jacob Dodson sets out in search of the Northwest Passage. March 26, 1872 – Thomas J. Martin patents fire extinguisher. 1911 – William H. Lewis becomes U.S. assistant... [Read More]
