The "Steam Era" refers to a period in the 18th and 19th centuries when steam power became a dominant source of energy. This era was marked by the invention and widespread use of the steam engine, which transformed industries such as transportation and manufacturing. Key developments included the steam locomotive and steamships, which revolutionized travel and trade. During the Steam Era, notable figures like James Watt improved steam engine efficiency, leading to increased productivity. The rise of railroads and steam-powered vessels facilitated the movement of goods and people, contributing to the growth of cities and the expansion of economies worldwide.