Here are some of Astor's contributions:
* Fur trade: Astor was one of the most successful fur traders in American history. He established the American Fur Company in 1808, which became the largest fur trading company in the world. Astor's company played a major role in the development of the American West, as it helped to open up new areas to trade and settlement.
* Real estate: Astor also made a fortune in real estate. He purchased large tracts of land in New York City and other parts of the United States, which he later sold for a significant profit. Astor's real estate investments helped to shape the development of New York City, as he was responsible for the construction of many buildings and landmarks.
* Philanthropy: Astor was a generous philanthropist. He donated large sums of money to various charitable organizations, including hospitals, schools, and libraries. Astor also founded the Astor Library in New York City, which was the first public library in the United States.
Astor's contributions to the United States were significant. He was a successful businessman who helped to shape the development of the American West and New York City. He was also a generous philanthropist who donated large sums of money to various charitable organizations.