Electrical inventor4/14/2023 ![]() Railroads connected the busy east coast of the United States with the frontier states in the west. He invented his own flour mill, a rotary steam engine, and two kinds of plows before he went to work for the railroad in the 1890s. Beard Andrew Jackson Beard (1849–1921) was born into slavery in Alabama and gained his freedom when he was fifteen. ![]() During the 19th century, before and after slavery was abolished, Black inventors continued to have a great influence on the United States. ![]() African Americans established a strong history of inventing products and tools in the 18th century. ![]()
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