Roads soon connected Aquileia with the Roman colony of Bologna probably in 173 BC. In 148 BC, it was connected with Genua by the "Via Postumia", which stretched across the Padanian plain from Aquileia through or near to Opitergium, Tarvisium, Vicetia, Verona, Bedriacum, and the three Roman colonies of Cremona, Placentia, and Dertona. The construction of the "Via Popilia" from the Roman colony of Ariminium to Ad Portum near Altinum in 132 BC improved communications still further. In the 1st century AD, the "Via Gemina" would link Aquileia with Emona to the east of the Julian Alps, and by 78 or 79 AD the "Via Flavia" would link Aquileia to Pula.