This is the third Iolaus-centric episode with Hercules on screen for only two minutes during the prologue and two minutes at the very end of the program.
Illegibus mentions bleeding King Phaedon's wound. In ancient Greece they believed that wounds from arrow/spear/sword not only tore the flesh but bruised the blood as well. They had to bleed the area around the wound to drain off the bruised blood and speed up healing.
King Orestes calls his peace plan the League of Kingdoms which refers to the 20th century League of Nations which was superceded by the United Nations.
King Xenon's physician is named Illegibus. This is a pun based on the belief that when doctors hand write a prescription, their handwriting is illegible.
There is a joke about Vargas, the king of Macadamia, losing his nuts. In Helenistic Greece the very important northern area was Macedonia. The macadamia nut is purely Australian and in 1857 was named in honour of John Macadam, a scientist/politician.