 Zerah Colburn (mental calculator)

Zerah Colburn (1804–1894) was an American prodigy known for his remarkable mental calculation abilities. Born in Vermont, he became famous in the early 19th century as a "mental calculator," able to perform complex arithmetic operations quickly and accurately in his head. Colburn could solve large mathematical problems and perform calculations to a level that astonished audiences, often demonstrating his skills in public performances.