Answer:
From the era of Reconstruction to the end of the 19th century, the United States underwent an economic transformation marked by the maturing of the industrial economy, the rapid expansion of big business, the development of large-scale agriculture, and the rise of national labor unions and industrial conflict.
An outburst of technological innovation in the late 19th century fueled this headlong economic growth. However, the accompanying rise of the American corporation and the advent of big business resulted in a concentration of the nation's productive capacities in fewer and fewer hands. Mechanization brought farming into the realm of big business as well, making the United States the world's premier food producer--a position it has never surrendered. But still the land hunger of white Americans continued unabated. This led to wars against the Native Americans of the Plains and the "second great removal" of indigenous peoples from their ancient homelands.
Step-by-step explanation:
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