 1264, the Declaration on the Construction of Main International Traffic Arteries, signed in Geneva on September 16, 1950, which defined the first E-road network.This declaration was amended several times before November 15, 1975, when it was replaced by the European Agreement on Main International Traffic Arteries or "AGR", which set up a route numbering system and improved standards for roads in the list.The AGR went through several changes, with the last one, as of 2011, in 2008.