Information Is BeautifulOne of humanity's greatest achievements
https://informationisbeautiful.net/beautifulnews/1208-fewer-children-dying/ #bnews
https://informationisbeautiful.net/beautifulnews/1208-fewer-children-dying/ #bnews
ArchaeoIain@infobeautiful is the rapid decline around 1960-65 due to measles etc vaccination?