I always thought of Joseph Priestley as a strictly English figure and was surprised to learn that he spent his final years in Pennsylvania. Though Priestley dis

I always thought of Joseph Priestley as a strictly English figure and was surprised to learn that he spent his final years in Pennsylvania. Though Priestley discovered oxygen in England in 1774, a centennial gathering at his house in Pennsylvania in 1874 led to the founding of the American Chemical Society [1]. [1]: https://en.wikipedia.org/wiki/American_Chemical_Society#History https://en.wikipedia.org/wiki/American_Chemical_Society#Hist...