A Democrat, he was the principal founder of Earth Day.

He was one of the principal founders of high school wrestling in Louisiana.

He was the principal founder of the theory of chemical structure.

They are considered to be among the movement's principal founders.

Galileo also considered Gilbert to be the principal founder of the experimental method.

He is considered to be the principal founder of Ba'athism.

Robert Knight (1825-1892) was the principal founder and the first editor of the Times.

The principal founder of the institute was the late Robert Funk.

She is considered the principal founder of what is now dance therapy in the United States.

Bangs was the principal founder and secretary of the Methodist missionary society.