It’s common knowledge that gay/bisexual men and women were relatively accepted in ancient European civilisations (especially Greece, Rome). At what point in time did this change, and why?

by [deleted]

[deleted]

Dinocrocodile

Not to discourage any further answers, but you'll probably find these answers from the FAQ on perceptions of Gender & Sexuality in past societies to be interesting:

What was it like being gay in ancient Rome? by /u/thebatteryhuman and /u/MarsTheGodOfWar

Did the Egyptians share the Greeks views of sex and sexuality?

How common was male homosexuality (or what we would now see as homosexuality) in ancient Greece?

Did the ancient Greeks object to pedophilia?

The above by /u/cleopatra_philopater

More below vvv