> Once the UK discovered roundabouts the number of traffic fatalities dropped steeply That sounded really wrong but it turns out you're correct (https://en.wik

> Once the UK discovered roundabouts the number of traffic fatalities dropped steeply That sounded really wrong but it turns out you're correct (https://en.wikipedia.org/wiki/Roundabout#History https://en.wikipedia.org/wiki/Roundabout#History), I had no idea roundabouts were such a recent thing. Something I've taken for granted as always existing were actually quite rare not long before I was born.