The company was founded in 1888 by British businessman Cecil Rhodes, who was financed by the South African diamond magnate Alfred Beit and the London-based N M Rothschild & Sons bank. In 1926, Ernest Oppenheimer, a German immigrant to Britain and later South Africa who had earlier founded mining company Anglo American with American financier J.P. Morgan, was elected to the board of De Beers. He built and consolidated the company's global monopoly over the diamond industry until his death in 1957. During this time, he was involved in a number of controversies, including price fixing and trust behaviour, and was accused of not releasing industrial diamonds for the U.S. war effort during World War II.