470 BC
Year 470 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 Potitus and Mamercus (or, less frequently, year 284 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 470 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.
  • Suspected of plotting to seize power in 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...

     by instigating a helot uprising, Pausanias
    Pausanias (general)
    Pausanias was a Spartan general of the 5th century BC. He was the son of Cleombrotus and nephew of Leonidas I, serving as regent after the latter's death, since Leonidas' son Pleistarchus was still under-age. Pausanias was also the father of Pleistoanax, who later became king, and Cleomenes...

     takes refuge in the Temple of Athena of the Brazen House to escape arrest.