Abraham Lehman was a prominent figure in the world of finance and investment. He co-founded the global financial services firm Lehman Brothers in 1850, which became one of the largest investment banks in the United States. The firm played a significant role in the development of the American financial markets and was involved in various sectors, including investment banking, trading, and asset management. Lehman Brothers grew rapidly over the years, becoming a key player in the financial industry. However, it faced significant challenges during the 2008 financial crisis, leading to its bankruptcy, which was one of the largest in U.S. history. This event had widespread implications for the global economy and highlighted the risks associated with financial institutions.