GENERAL KNOWLEDGE

Detailed explanation-1: -Stockton & Darlington Railway, in England, first railway in the world to operate freight and passenger service with steam traction.

Detailed explanation-2: -On February 28, 1827, the Baltimore & Ohio Railroad became the first U.S. railway chartered for commercial transport of passengers and freight. There were skeptics who doubted that a steam engine could work along steep, winding grades, but the Tom Thumb, designed by Peter Cooper, put an end to their doubts.

Detailed explanation-3: -Richard Trevithick designed and built the first steam locomotive to run on smooth rails in 1802. However, the Salamanca, a steam locomotive built in 1812 by John Blenkinsop and Matthew Murray, was the first commercially successful model (drawing below courtesy of Wikipedia).