Wars are great sources of innovation. Here are all the innovations stemming from the American Civil War: https://www.pbs.org/opb/historydetectives/feature/civi

Wars are great sources of innovation. Here are all the innovations stemming from the American Civil War: https://www.pbs.org/opb/historydetectives/feature/civil-war-innovations/ https://www.pbs.org/opb/historydetectives/feature/civil-war-...