Year 296 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 Violens and Caecus (or, less frequently, year 458 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 296 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.

Greece

• 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...
  
   makes peace with Demetrius Poliorcetes, to whom he betrothes his daughter Ptolemais
  Ptolemais
  Ptolemais, an Ancient Greek place name and feminine personal name, may refer to:Places*Acre, Israel, once named Antiochia Ptolemais after Ptolemy I Soter*Crocodilopolis, an Egyptian city renamed Ptolemais Euergetis by Ptolemy III Euergetes...
  
  .

Roman Republic

• The temple to Bellona
  Bellona (goddess)
  Bellona was an Ancient Roman goddess of war, similar to the Ancient Greek Enyo. Bellona's attribute is a sword and she is depicted wearing a helmet and armed with a spear and a torch....
  
   is erected at the south end of the prata Flaminia, later the Circus Flaminius, in Rome
  Rome
  Rome is the capital of Italy and the country's largest and most populated city and comune, with over 2.7 million residents in . The city is located in the central-western portion of the Italian Peninsula, on the Tiber River within the Lazio region of Italy.Rome's history spans two and a half...
  
  .