Year 298 BC was a year of the pre-Julian Roman calendar

Roman calendar

The Roman calendar changed its form several times in the time between the founding of Rome and the fall of the Roman Empire. This article generally discusses the early Roman or pre-Julian calendars...

. At the time it was known as the Year of the Consulship of Barbatus and Centumalus (or, less frequently, year 456 Ab urbe condita

Ab urbe condita

Ab urbe condita is Latin for "from the founding of the City ", traditionally set in 753 BC. AUC is a year-numbering system used by some ancient Roman historians to identify particular Roman years...

). The denomination 298 BC for this year has been used since the early medieval period, when the Anno Domini

Anno Domini

and Before Christ are designations used to label or number years used with the Julian and Gregorian calendars....

 calendar era

Calendar era

A calendar era is the year numbering system used by a calendar. For example, the Gregorian calendar numbers its years in the Western Christian era . The instant, date, or year from which time is marked is called the epoch of the era...

 became the prevalent method in Europe for naming years.

Roman Republic

• The Samnites defeat the Romans
  Roman Republic
  The Roman Republic was the period of the ancient Roman civilization where the government operated as a republic. It began with the overthrow of the Roman monarchy, traditionally dated around 508 BC, and its replacement by a government headed by two consuls, elected annually by the citizens and...
  
   under Lucius Cornelius Scipio Barbatus
  Lucius Cornelius Scipio Barbatus
  Lucius Cornelius Scipio Barbatus was one of the two elected Roman consuls in 298 BC. He led the Roman army to victory against the Etruscans near Volterra...
  
   in the Battle of Camerinum
  Battle of Camerinum
  The Battle of Camerinum in 298 BC was the first battle of the Third Samnite War. In the battle, the Samnites defeated the Romans, who were commanded by Lucius Cornelius Scipio Barbatus....
  
  , first battle of the Third Samnite War.
• The Roman armies penetrate into the heart of the Samnite territory and then capture the Samnite cities of Taurasia, Bovianum Vetus and Aufidena.

Sicily

• Agathocles
  Agathocles
  Agathocles , , was tyrant of Syracuse and king of Sicily .-Biography:...
  
  , king of Syracuse, assists the Italian Greeks against the Bruttians and supported the Greeks against the Romans.

Egypt

• Ptolemy
  Ptolemy I Soter
  Ptolemy I Soter I , also known as Ptolemy Lagides, c. 367 BC – c. 283 BC, was a Macedonian general under Alexander the Great, who became ruler of Egypt and founder of both the Ptolemaic Kingdom and the Ptolemaic Dynasty...
  
   gives his stepdaughter Theoxena in marriage to Agathocles, the tyrant of Syracuse (in south-eastern Sicily
  Sicily
  Sicily is a region of Italy, and is the largest island in the Mediterranean Sea. Along with the surrounding minor islands, it constitutes an autonomous region of Italy, the Regione Autonoma Siciliana Sicily has a rich and unique culture, especially with regard to the arts, music, literature,...
  
  ).
• Ptolemy finally brings the rebellious region of Cyrene under his control. He places the region under the rule of his stepson Magas.

India

• Bindusara
  Bindusara
  Bindusara was the second Mauryan emperor after Chandragupta Maurya. During his reign, the empire expanded southwards. He had two well-known sons, Susima and Ashoka, who were the viceroys of Taxila and Ujjain...
  
   succeeds his father Chandragupta Maurya
  Chandragupta Maurya
  Chandragupta Maurya , was the founder of the Maurya Empire. Chandragupta succeeded in conquering most of the Indian subcontinent. Chandragupta is considered the first unifier of India and its first genuine emperor...
  
   as emperor of the Mauryan Empire.