no he didn't
A Rocket
George Stephenson did not do a rocket launch in 1821. Rocket was the name of his locomotive.
Robert Stephenson Invented The Rocket (Steam line train)
no
George Stephenson
Robert Stephenson invented the Rocket in England at the Forth Street Works in Newcastle upon Tyne.
George Stephenson
because of it's speed.
1814
1829
Stephenson's Rocket was invented by George Stephenson, an English engineer known as the "Father of Railways." It was built in 1829 for the Rainhill Trials, a competition to determine the best locomotive for the Liverpool and Manchester Railway. Stephenson's Rocket won the competition and went on to become one of the most famous early steam locomotives.
not from scratch but helped improve it