New classes can be derived from existing classes using a mechanism called inheritance (see the information beginning in Single Inheritance). Classes that are used for derivation are called base classes of a particular derived class. A derived class is declared using the following syntax:
John Brown (abolitionist) John Brown (May 9, 1800 â December 2, 1859) was an American abolitionist who believed armed insurrection was the only way to overthrow the institution of slavery in the United States. Brown first gained attention when he led small groups of volunteers during the Bleeding Kansas crisis of 1856.
Following the events in Kansas, Brown spent two and a half years traveling throughout New England, raising money to bring his anti-slavery war to the South. In 1859, John Brown, under the alias Isaac Smith, rented the Kennedy Farmhouse, four miles north of Harpers Ferry, Virginia (now West Virginia).