Year 298 BC was a year of the pre-Julian Roman calendar. At the time it was known as the Year of the Consulship of Barbatus and Centumalus (or, less frequently, year 456 Ab urbe condita). The denomination 298 BC for this year has been used since the early medieval period, when the Anno Dominicalendar era became the prevalent method in Europe for naming years.
The Lucanians seek Roman aid against the invasion of the Samnites. In agreeing to take the Lucanians under their protection, the Romans commit to war against the Samnites.
Fulvius invades central Samnium and defeats a Samnite army near Bovianum. He then captures Aufidena and possibly also Bovianum.
Scipio captures Taurasia and Cisauna in eastern and south-eastern Samnium and subdues anti-Roman elements in Lucania. Fulvius possibly defeats a Lucanian force as well.[1][2][3][4]
Sicily
Agathocles, king of Syracuse, assists the Italian Greeks against the Bruttians and supports the Greeks against the Romans.
Egypt
Ptolemy gives his stepdaughter Theoxena in marriage to Agathocles, the tyrant of Syracuse (in south-eastern Sicily).
Ptolemy finally brings the rebellious region of Cyrene under his control. He places the region under the rule of his stepson Magas.