George Stephenson is considered to be the inventor of the first steam locomotive engine for railways. Richard Trevithick's invention is considered the first tramway locomotive, however, it was a road locomotive, designed for a road and not for a railroad. Stephenson was extremely poor growing up and received little formal education. He worked in local collieries and was self-taught in reading and writing. In 1812, he became a colliery engine builder, and in 1814 he built his first locomotive for the Stockton and Darlington Railway Line. Stephenson was hired as the company engineer and soon convinced the owners to use steam motive power and built the line's first locomotive, the Locomotion. In 1825, Stephenson moved to the Liverpool and Manchester Railway, where together with his son Robert built (1826-29) the Rocket.