Year 162 BC was a year of the pre-Julian Roman calendar. At the time it was known as the Year of the Consulship of Corculum/Lentulus and Figulus/Ahenobarbus (or, less frequently, year 592 Ab urbe condita). The denomination 162 BC for this year has been used since the early medieval period, when the Anno Dominicalendar era became the prevalent method in Europe for naming years.
Seleucid forces still control the Acra, a strong fortress within Jerusalem that faces the Temple Mount. Judas Maccabeus lays siege to the fortress and in response, the Seleucid general and regent to the young Seleucid king Antiochus V, Lysias, approaches Jerusalem and besieges Beth-zechariah, 25 kilometres from the city. Judas lifts his own siege on the Acra, and leads his army south to Beth-zechariah. In the ensuing Battle of Beth-zechariah, the Seleucids achieve their first major victory over the Maccabees, and Judas is forced to withdraw to Jerusalem.
Lysias then lays siege to the city. Just when capitulation by the Maccabees seems imminent, Lysias has to withdraw when the commander-in-chief under the late Seleucid king Antiochus IV Epiphanes, Philip, rebels against him. As a result, Lysias decides to propose a peaceful settlement which is accepted by the Maccabees. The terms of peace involve the restoration of religious freedom, permission for the Jews to live in accordance with their own laws, and the official return of the Temple in Jerusalem to the Jews.
With the aid of the Greek statesman and historian Polybius, the son of the former Seleucid king Seleucus IV Philopator, Demetrius escapes from Rome, where he has been held as a hostage for many years, and returns to Syria to claim the throne from his nephew Antiochus V. In the resulting dispute, Antiochus V and his regent, Lysias, are overthrown and put to death. Demetrius then establishes himself on the Seleucid throne.