alt Hacker NewsBirth control is older than the Bible[1], it just wasn't as effective. Humanity as a whole was very aware how babies come to be.
Ways to have fun without coitus aren't a recent invention either.
Human reproduction and raising children is an unusually taxing, time-, and resource-intensive process, which is why we've applied our considerable intellect to plan for that since forever.
I've read that wikipedia article, and I got the impression that to say that birth control just wasn't as effective is an understatement. One more my finding: the idea of planning your family is relatively modern: Malthusians promoted it widely. It doesn't mean people were not thinking along these lines before, but our widespread understanding of how important it is is mostly a modern phenomena. Like the idea to postpone a marriage and reproduction was not very popular before modernity. We've applied our considerable intellect to invent these things and to make not so smart people to be aware of our findings, but these are very recent ideas. In agrarian world you need a lot of people to feed your armies, so any attempts at birth control would be deemed illegal, amoral or whatever. Kings and popes would do anything to stop people from slowing down their reproduction. Which they did, witch hunt clearly stated that witches are guilty of killing yet unborn babies, ie abortions.