Welding testModern Marvels: Welders Forge the Backbone of Civilization (S14, E15) | Full Episode | History August 21, 2022 - Leave a Comment HISTORYSun, August 21, 2022 2:29amURL:Embed:Tune in to new episodes of Modern Marvels, Sundays at 10/9c on The HISTORY Channel. It was a science first conjured amid the …