What is 20?
{{dablink|This page is about the year 20 AD. For the actual number, see [[twenty]].}} {{year nav|20}} {{Year in other calendars}} {{wiktionary|twenty}} '''20''' is a [[year]] in the [[1st century]]. It was a [[leap year starting on Monday]] of the [[Julian calendar]]. At the time, it was known as the Year of the [[Roman consul|Consulship]] of [[Marcus Valerius Messalla Barbatus]] and [[Cotta]]. == Events == * [[Tiberias]] is built on the [[Sea of Galilee]] by [[Herod Antipas]]. * [[Galba]] is a [[Roman Empire|Roman]] [[praetor]]. * [[Marcus Valerius Messalla Barbatus]] becomes a [[Roman consul|consul]]. * First year of ''Dihuang'' era of the Chinese [[Xin Dynasty]]. * [[Philo]] defines [[philosophy]] as the maidservant of [[theology]]. == Deaths == * [[Gnaeus Calpurnius Piso]], Roman [[Politician|statesman]] and governor of [[Syria (Roman province)|Syria]] (b. [[44 BC]]) * [[Vipsania Agrippina]], wife of [[Gaius Asinius Gallus]] and former wife of [[Tiberius]] (b. [[36 BC]]) [[Category:20s]]