View source for 170 BC

=== By place ===
==== Greece ====
* In [[Thessaly]], King [[Perseus of Macedon]] repulses a [[Roman Republic|Roman]] army which is commanded by Aulus Hostilius Mancinus. Meanwhile, the [[Thrace|Thracian]] city of [[Abdera, Thrace|Abdera]] is sacked by Roman and [[Pergamum|Pergamese]] troops.

==== Egypt ====
* With the guardians of the young king [[Ptolemy VI Philometor]] demanding the return of [[Coele-Syria]] to [[Ancient Egypt|Egyptian]] control, the [[Seleucid]] king, [[Antiochus IV Epiphanes]], decides on a preemptive strike against Egypt and invades the country, conquering all but the city of [[Alexandria]]. He is also able to capture Ptolemy VI.
* Antiochus IV decides to let Ptolemy VI continue as king of Egypt, but as his puppet. He does this to minimise any reaction from Rome towards his invasion. Antiochus IV then departs Egypt to deal with disturbances in [[Palestine (region)|Palestine]], but he safeguards his access to Egypt with a strong garrison in [[Pelusium]].
* With Antiochus IV now absent from the country, the citizens of Alexandria choose Ptolemy VI's brother [[Ptolemy VIII Euergetes II]] as their king. The two Ptolemy brothers agree to rule Egypt jointly with their sister [[Cleopatra II of Egypt|Cleopatra II]] and Coele Syria is invaded by the Egyptian forces.

==== Seleucid Empire ====
* The usurped high priest of [[Judea]], [[Jason (high priest)|Jason]], does not abandon his claims to being the high priest which he has lost to [[Menelaus (High Priest)|Menelaus]] two years earlier. While Antiochus IV is waging war against Egypt, he succeeds in making himself master of [[Jerusalem]] once more and forces Menelaus to seek refuge in the citadel.

==== Bactria ====
* Around this time, [[Eucratides]], who is either a rebellious [[Bactria]]n official or a cousin of the Seleucid king Antiochus IV Epiphanes, captures the throne of the [[Greco-Bactrian Kingdom]] by toppling the Euthydemid dynasty's king [[Antimachus I]].
</onlyinclude>