Who is credited with the invention of the steam engine?

James Watt is credited with the significant advancements in steam engine technology that made it practical and efficient for use in industry and transportation. While he did not invent the steam engine concept itself—earlier versions existed—it was Watt's innovations, particularly the separate condensing chamber he developed in the late 18th century, that greatly increased the efficiency of steam engines. This efficiency led to widespread use in factories and eventually in steam-powered vessels, which revolutionized both manufacturing and maritime travel.

Watt's design improvements allowed for engines to become smaller and more powerful, helping to ignite the Industrial Revolution. Because of these contributions, his name is often associated with the steam engine, and he is recognized as a key figure in its development. This distinction highlights the importance of his work in transforming steam power from a rudimentary idea into an essential aspect of modern technology.