Did they really?

What do you make of this, from Nolan Chart?

A bit muddled, I would say.

In the Classical period, both Greeks and Romans accepted marriages between gay men. The Greeks believed that such couples made especially good soldiers, as they would wish to vaunt their bravery in battle before their partner. Most Romans, on the other hand, recognized gay marriages but sneered at homosexuals; still, several Roman Emperors married men. Nero did so twice, taking both the male and female role.

And the article begins by stating:

Some sound factual knowledge and common sense need to be injected into the debates over same-sex marriage.

Could be common sense, I suppose, but I question whether it’s sound factual knowledge.