QUESTION: Why is George Stephenson’s Locomotion No. 1 regarded as the first steam locomotive? What about Richard Trevithick’s Penydarren? Stephenson’s Locomotion No. 1 is significant because ...

There are steam locomotives, and then there’s “Big Boy.” At 604 tons and 132 feet long and with a 4-8-8-4-wheel arrangement, it is the largest, most powerful steam locomotive in the world.

First developed in the 1860s ... check out the Great American Steam Locomotives: Mikados DVD from Trains.

Locomotion No. 1 was the first steam locomotive to run on a public railway.This firing shovel was used on Locomotion No.1, the first steam locomotive to run on a public railway, at the opening of ...