Where do babies come from? Until recently, even genius scientists had no idea

By way of a break in this polarized era, let's briefly consider the single topic that men and women of every culture and nationality have happily agreed on, from the beginning of time to this very minute -- babies are good. But until astonishingly recent times, nearly every aspect of where babies come from was utterly mysterious. The titans of the scientific revolution had no notion. Leonardo da Vinci did not know, Galileo did not know, Isaac Newton did not know. They knew, that is, that men and women have sex and as a result, sometimes, babies, but they did not know how those babies are created.