A sword cut is mentioned. They had swords back then?
Sharp rock, sword. The Agony and the Ecstasy...
They were Bronze Age. You can make a decent sword out of bronze, though they were very expensive and thus usually limited to high aristocracy.
The Trojan war guys found with bronze weapons.
Interestingly, when iron working became widespread it caused the collapse of societies around the world and led to centuries of Dark Age.
There is also a mention of a sewage drain. They had plumbers back then?
Depending on how you define "sword"... sure. Of course iron and bronze have been worked into weapons for thousands of years. But even back in the stone age there were wooden "swords" with shards of obsidian or other glass-like stone stuck along an edge. Crude, but effective and fearsome.