Before revision: "Public data network" was the common name given to the collection of X.25 providers, the first of which were Telenet in the U.S. and DATAPAC in Canada in 1976 , and Transpac in France in 1978.
After revision: "Public data network" was the common name given to the collection of X.25 providers, the first of which were Telenet in the U.S. and DATAPAC in Canada in 1976 , and Transpac in France (both)