1-2 of 2 results  for:

  • 1775–1800: The American Revolution and Early Republic x
  • Science and Technology x
  • Mathematical Sciences x
Clear all

Article

was born in Trujillo, in northwestern Peru, between 1707 and 1728; his exact year of birth is unknown. He was the son of Magdalena Tirado, who might have been a slave, and Miguel de Herrera, a free man of mixed descent. He defined himself as a pardo, or black man. It has been confirmed that he was a slave belonging to the silversmith Martín de la Cadena, which would explain his last name as well as his knowledge of metalwork; however, during the period of time documented in his biography, José was a free man.

Cadena’s first marriage was to Pascuala Velarde. In 1761 he signed his Cartilla música, a small treatise of musical theory published in Lima two years later. He was imprisoned briefly for debts he acquired in printing the treatise. It is probable that between 1763 and 1767 he might have lived in ...

Article

William F. Mugleston

Thomas Fuller was born in West Africa. Nothing is known of his parents or other family. At the age of fourteen he was brought as a slave to British North America and apparently lived the remainder of his life in Virginia. In his old age he was owned by Elizabeth Coxe of Alexandria, Virginia.

Fuller led the typical life of a slave and never learned to read or write but was widely noted late in his life for his extraordinary ability to perform rapid and complicated mathematical calculations in his head. Travelers wanting to witness his skill often visited him. One of them was Benjamin Rush of Philadelphia the noted physician and educator Rush quizzed him and verified the accuracy of his answers Fuller could multiply nine figures by nine give the number of seconds in a year calculate how many seconds anyone had lived determine the number ...