The birth rate question got me thinking...
One reason birth rates have dropped in "the real world" is because of the Industrial Revolution. We simply didn't need as many children around for labor any more. And thanks to modern medicine, the children we had lived longer and didn't need replacing as often.
We know through the books and stuff on Pottermore that magic has developed over time (can't cite specific examples, sorry). But do we know if there has ever been a "Magical Revolution" akin to the Industrial Revolution?
