This invention was the basis for the major developments in American transportation

The invention that served as the basis for major developments in American transportation was the steam engine. Developed in the late 18th century and further improved in the early 19th century, the steam engine revolutionized transportation by powering locomotives and steamboats.

The steam engine's introduction in the transportation sector had a profound impact on the United States. It facilitated the expansion of railroads, which became the primary mode of land transportation, connecting cities and regions across the country. Railroads not only helped in the transportation of goods and people but also played a significant role in the westward expansion, enabling settlers and miners to reach the western frontier more easily.

Furthermore, steam-powered boats, commonly known as steamboats, revolutionized water transportation in America. These vessels enabled reliable upstream travel, especially on rivers such as the Mississippi, which was crucial for trade and commerce.

The advent of the steam engine led to the creation of an extensive transportation network, transforming the American economy and society. It facilitated the growth of industries, allowed for the efficient movement of goods and resources, and made travel more accessible and convenient. The steam engine opened up new opportunities for expansion, trade, and development, ultimately shaping the modern transportation system in the United States.