Year 267 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 Regulus and Libo (or, less frequently, year 487 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 267 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

• Macedon
  Macedon
  Macedonia or Macedon was an ancient kingdom, centered in the northeastern part of the Greek peninsula, bordered by Epirus to the west, Paeonia to the north, the region of Thrace to the east and Thessaly to the south....
  
  ia's King Antigonus II Gonatas
  Antigonus II Gonatas
  Antigonus II Gonatas was a powerful ruler who firmly established the Antigonid dynasty in Macedonia and acquired fame for his victory over the Gauls who had invaded the Balkans.-Birth and family:...
  
   has to deal with a rebellion by an Athenian-led coalition of Sparta
  Sparta
  Sparta or Lacedaemon, was a prominent city-state in ancient Greece, situated on the banks of the River Eurotas in Laconia, in south-eastern Peloponnese. It emerged as a political entity around the 10th century BC, when the invading Dorians subjugated the local, non-Dorian population. From c...
  
  ns (led by King Areus I
  Areus I
  Areus I was Agiad King of Sparta from 309 to 265 BC, who died in battle near Corinth during the Chremonidean War. He was the grandson of Cleomenes II and was succeeded by his son Acrotatus II.-Military Success:...
  
   of Sparta), Athenians (led by Chremonides
  Chremonides
  Chremonides , son of Eteokles, of Aithalidai, was an Athenian 3rd century BC statesman and general. He issued the Decree of Chremonides in 268 BC, creating an alliance between Sparta, Athens, and Ptolemy II, the Macedonian King of Egypt...
  
  ), Arcadia
  Arcadia
  Arcadia is one of the regional units of Greece. It is part of the administrative region of Peloponnese. It is situated in the central and eastern part of the Peloponnese peninsula. It takes its name from the mythological character Arcas. In Greek mythology, it was the home of the god Pan...
  
  ns and Achaea
  Achaea
  Achaea is one of the regional units of Greece. It is part of the region of West Greece. It is situated in the northwestern part of the Peloponnese peninsula. The capital is Patras. The population exceeds 300,000 since 2001.-Geography:...
  
  ns that tries to expel the Macedonian forces located in Greece. The rebellion has the support of Ptolemy II
  Ptolemy II Philadelphus
  Ptolemy II Philadelphus was the king of Ptolemaic Egypt from 283 BCE to 246 BCE. He was the son of the founder of the Ptolemaic kingdom Ptolemy I Soter and Berenice, and was educated by Philitas of Cos...
  
   of Egypt
  Ancient Egypt
  Ancient Egypt was an ancient civilization of Northeastern Africa, concentrated along the lower reaches of the Nile River in what is now the modern country of Egypt. Egyptian civilization coalesced around 3150 BC with the political unification of Upper and Lower Egypt under the first pharaoh...
  
  .