Motherhood a few centuries back wasn't that different from what it is now, except for the staggeringly greater chance that your baby would die in infancy. That's my takeaway. Okay, it's kind of a big "except." But still, it's interesting to see how far back the roots of modern parenting styles go. Even further than this, I would wager in a lot of cases.
The painting at the top of the linked article looks insane to me. I've never seen one waking baby who looked that calm, never mind two. The artist took some heavy liberties there.