"Sudiferous" Natural Recordings by Native Speakers
Chemical process for making sulfuric acid and sulfur dioxide by burning sulfur.
The term "Sudetenland" refers to a region of Czechoslovakia that was historically inhabited by a majority of mostly German-speaking citizens. During the interwar period, it was an autonomous region within Czechoslovakia, but it was annexed by Nazi Germany in 1938 under the Treaty of Munich, following a plebiscite that showed a large majority of the population supported union with Germany. The annexation was a key step in the buildup to World War II.