After Roman conquest of Illyria at 168 BC , Romans colonized .
After Roman conquest of Illyria at 168 BC , Romans founded several cities in the region , like Ulpiana , Theranda , Vicianum , incorporating it into the Roman province of Illyricum in 59 BC .
After Roman conquest of Illyria at 168 BC , Romans colonized and founded several cities in the region , like Ulpiana , Theranda , Vicianum , incorporating it into the Roman province of Illyricum in 59 BC .