From Ohio History Central
The word sulfur comes from the Latin name for this important chemical element. Since much of the earth's sulfur has been formed from gasses emitted by volcanoes, many mining operations throughout the world are found near extinct volcanoes. Sulfur is used in many manufacturing processes. One of the most notable historically is the production of black powder. Other industries include sulfuric acid, paper making, dyes, insecticides and fungicides.