[1] Hill in Rome
Hill in Rome, c. 2 km long, 400-500 m high. Although Caelius Mons (CM) is counted amongst the oldest of the city's hills (Dion. Hal. 2,50,1; Tac. Ann. 4,56; 11,24), its largest part was outside the pomerium . Even though graves were still sited there in the Republican age, the area later developed into a fashionable residential district (Cic. Off. 3,16,66; Plin. HN 36,48; Tac. Ann. 4,64); in the Imperial Age, when the slopes of the Esquilin and the Colosseum were built up with insulae, the fashionable d…