145 BCE

Ptolemy VII becomes king of Egypt briefly, then is assassinated by Ptolemy VIII the following year. Hipparchus determines the length of the tropical year. In the Battle of Antioch, Ptolemy VI Philometor defeats the Seleucid usurper Alexander Balas, but dies in the battle.

In the 140s BC, the 2nd century BC.

Conflict & Security

  • In the Battle of Antioch, Ptolemy VI Philometor defeats the Seleucid usurper Alexander Balas, but dies in the battle.source

Science & Discovery

  • Hipparchus determines the length of the tropical year.source

Births

  • Sima Qian, Chinese historian (or 135 BC) (died 86 BC)source

Deaths

  • Ptolemy VII becomes king of Egypt briefly, then is assassinated by Ptolemy VIII the following year.source
  • Alexander Balas (assassinated)source
  • Ptolemy VI of Egypt (killed in battle) (born c. 186 BC)source