A steam train is a type of locomotive that uses steam power to move. It operates by burning fuel, usually coal or wood, to heat water in a boiler, creating steam. This steam then drives pistons that turn the wheels, allowing the train to travel along tracks. Steam trains were widely used in the 19th and early 20th centuries for both passenger and freight transport. The invention of the steam train is often attributed to George Stephenson, who built the first successful locomotive, named Locomotion No. 1, in 1825. Steam trains played a crucial role in the industrial revolution, connecting cities and facilitating trade. Today, they are primarily used for historical tours and as a nostalgic symbol of the past.