JPMorgan Chase was created in 2000 through the merger of J.P. Morgan and Chase Manhattan.
The transaction joined two major American financial institutions with different historical strengths. J.P. Morgan had deep roots in investment banking and corporate finance, while Chase Manhattan had a major commercial-banking tradition. The combined company initially used the name J.P. Morgan Chase.
JPMorgan Chase's later form also reflects additional consolidation. In 2004, J.P. Morgan Chase merged with Bank One, bringing Jamie Dimon into the company's leadership. In 2008, the firm acquired Washington Mutual's banking operations during the financial crisis. These later transactions are sometimes mistaken for the event that created the company, but the foundational J.P. Morgan–Chase Manhattan merger occurred in 2000.