How did the Graham cracker get its name?

Sylvester Graham invented Graham Crackers in 1829. Graham was a Presbyterian minister and avid vegetarian, who promoted the use of unsifted and coarsely ground wheat flour for its high fiber content. The flour was nicknamed "graham flour" after Minister Graham, the main ingredient in Graham Crackers.

Sylvester Graham was born in West Suffield, Connecticut in 1795 and died in 1851.