Iranians used poison gas

Of course, they were normally known as Persians then.

Whey? More than 1,700 years ago, when the Sassanid Empire used suffocating gas to attack the Romans.

Just shows that, between the people who invented crucifixion and those who brought it to a new "art form," there's nothing new under the sun in the way of warfare, cruelty, etc.

Also, for the V.D. Hansens of the world determined to demonize Iran? Your Christianity's heaven, hell, apocalyptic dualism, bodily resurrection, last judgment and afterlife all came from those ancient Persians, as did Marco Polo's macaroni `,000 years after the battle in the link, so I'd just shut up if I were you.