The Société des Transports en Commun de la Région Parisienne (1921 - 1941) (STCRP) (Society for Public Transport of the Paris Region) existed from 1921 until 1941, when it was absorbed by the Compagnie du chemin de fer métropolitain de Paris. At the end of World War I, the six company’s responsible for public transportation (buses and tramways) in Paris and in the Department of the Seine were financially ruined. The Department of the Seine bought these six companies and then in 1921 confided the operation of the buses and tramways in the region to the STCRP. Unlike today’s RATP, which is responsible for running public transportation in Paris and its suburbs, the STCRP was a private company. The STCRP set about modernizing and unifying the disparate systems, and, beginning in 1925, the STCRP began phasing-out the trams. The trams of Paris were completely eliminated by August 1938. During World War II, the CMP, which ran the Paris métro (subway) and the STCRP were still separate entities but were 'made complimentary'. On January 1, 1949, the RATP was created and absorbed both the STCRP and the CMP.