Andrew Carnegie, one of the wealthiest individuals in history, had a net worth of approximately $372 billion in today’s dollars when he died in 1919. He made his fortune in the steel industry, building Carnegie Steel Company, which he later sold to J.P. Morgan for $480 million. Despite his immense wealth, Carnegie believed in the importance of philanthropy. He donated the majority of his fortune to various causes, including education, libraries, and peace initiatives. By the time of his death, he had given away around $350 million, leaving a relatively modest amount for his personal estate.
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