A steam shovel is a type of heavy construction equipment used for digging and moving earth. It operates using steam power, which drives a large bucket that can scoop up soil, rocks, and other materials. The steam shovel was a significant advancement in construction technology during the late 19th and early 20th centuries, allowing for more efficient excavation compared to manual labor. Invented by William Otis in 1835, the steam shovel played a crucial role in large-scale projects such as railroads and canals. Over time, it evolved into modern excavators, which often use diesel or electric power instead of steam. Today, steam shovels are mostly of historical interest, with their design influencing contemporary machinery.