The world in 169 BC — what happened that year

12 events the sources record for this year, grouped by region.

What happened

The Yellow River burst its banks at Puyang in Dong Commandery. (Book of Han (Hanshu), Imperial Annals 漢書卷004 文帝前元十二年十二月)

Antiochus comes to Pelusium with a large army, deceives the king of Egypt and takes Egypt (Josephus, Jewish War and Antiquities of the Jews 12.243)
The king won a naval battle off Pelusium, bridged the Nile and crossed, threatening to besiege Alexandria (Livy, History of Rome (Ab Urbe Condita) 44.19)
Greek envoys visit Antiochus in occupied Egypt (Polybius, Histories 28.20)
He lifts the siege of Alexandria and withdraws for the time being (Polybius, Histories 28.22)

After a three-day march he camped near Uscana, the largest city of the Penestae (Livy, History of Rome (Ab Urbe Condita) 43.18)
After a day studying the terrain, believing Pieria had ample grain, he advanced (Livy, History of Rome (Ab Urbe Condita) 44.7)
The assault began in earnest by land and sea, with frontal charges, siege engines and catapults (Livy, History of Rome (Ab Urbe Condita) 44.9)
With the fleet he went from Heracleum to Thessalonica, landing at many points along the coast and plundering widely (Livy, History of Rome (Ab Urbe Condita) 44.10)
Perseus heard that the consular army was preparing to attack Meliboea and the fleet Demetrias from off Iolcus (Livy, History of Rome (Ab Urbe Condita) 44.13)
Heracleum is taken with the testudo formation (Polybius, Histories 28.11)
Antiochus invades Egypt (Polybius, Histories 28.17)