The battle saw the further ascendancy of Rome in the Hellenistic world and the end of the Antigonid line of kings, whose power traced back to Alexander the Great.
[1] The battle is also considered to be a victory of the Roman legion's manipular system's flexibility over the Macedonian phalanx's rigidity.
By the end of the year, the tide changed dramatically and Perseus had gained a success at the Battle of Callinicus and regained most of his losses, including the important religious city of Dion.
A Roman deserter, however, made his way to the Macedonian camp and Perseus sent a force of 12,000 under the command of Milo to block the approach road.
The night before the battle there was a lunar eclipse, which was perceived by the Macedonians as an ill omen; according to Plutarch, they interpreted it as a sign of their king's demise.
Meanwhile, Paullus is said to have understood that eclipses occurred at regular intervals but still believed it was necessary to perform sacrifices and wait for "favourable omens.
The exact cause of the start of the battle differs; one story is that Paullus waited until late enough in the day for the sun not to be in the eyes of his troops, and then sent an unbridled horse forward to bring about alarm.
[9] For example, prior to the battle Perseus dispatched 8,000 of his Macedonians to guard against the Roman fleet threatening his rear: 2,000 peltasts, 5,000 phalangites, and 1,000 cavalry.
But as the phalanx pushed forward, the ground became more uneven as it moved into the foothills, and the line lost its cohesion, being forced over the rough terrain.
Poseidonius claimed that the king was injured by enemy missiles and was brought to the city of Pydna at the start of the battle.
Other reports state that due to confusion or tactical error from the king, a corps of 10,000 Macedonians were cut off and did not participate in the engagement.
Nevertheless, modern conclusions are that the loss was actually due to a failure of command on the part of Perseus, as well as the peculiar stance of the Companion cavalry, who did not engage the enemy.
The Battle of Pydna and its political aftermath mark the effective end of Macedonian independence, although formal annexation was still some years away.
The Senate's settlement included the deportation to Italy of many of the king's friends[14] and the imprisonment (later house arrest) of Perseus at Alba Fucens.