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Pei & Partners was the name of I. M. Pei's architectural firm in 1966. The firm was founded in 1955 as I. M. Pei & Associates, and it was renamed Pei & Partners in 1966. The firm is known for its modernist designs, and it has designed some of the world's most iconic buildings, including the Louvre Pyramid in Paris and the Bank of China Tower in Hong Kong.