Washington State Route 99. State Route 99 (SR 99), also known as the Pacific Highway and officially the William P. Stewart Memorial Highway, is a 49.13-mile-long (79.07 km) state highway serving the Seattle metropolitan area in the U.S. state of Washington. A 2-mile (3.2 km) gap divides the highway into two segments, between the interchanges of SR 518 and SR 599 in Tukwila.
Edict of Milan. Edict of Milan, a proclamation that permanently established religious toleration for Christianity within the Roman Empire. It was the outcome of a political agreement concluded in Milan between the Roman emperors Constantine I and Licinius in February 313.
I guess you mean Roman empire If so Rome and Milan. When Milan was the capital of the west, it surpassed Rome in importance because the imperial court was there. Christianity was made the state religion of the empire with the Edict of Milan.