Labels:bulletin board | door | earth | fence | person | reckoner | road | sky | stairs | stairway OCR: Priestley, oseph: 1804) British chemist and theo- logian who discovered the physical properties f oxygen Priestley was encouraged and supported b Benjamin Franklin. In 1794, after his work on behalf of the Unitarian church and his political sympathies for the French reva- lutionaries earned him disfavor ir his homeland he emigrated t the United States Joseph 17331804 thea Initariar hurh eamed Inited