Article: In 1937, IBM's tabulating equipment enabled organizations to process unprecedented amounts of data, its clients including the U.S. Government, during its first effort to maintain the employment records for 26 million people pursuant to the Social Security Act, and the Third Reich, largely through the German subsidiary Dehomag. During the Second World War the company produced small arms for the American war effort (M1 Carbine, and Browning Automatic Rifle). IBM provided translation services for the Nuremberg Trials. In 1947, IBM opened its first office in Bahrain, as well as an office in Saudi Arabia to service the needs of the Arabian-American Oil Company that would grow to become Saudi Business Machines (SBM).

Question: What year did IBM open its first office in Bahrain?
1947