The Proms different kind of authority. The personnel of the New Queen's Hall Orchestra effectively continued until 1930 as 'Sir Henry J. Wood and his Symphony Orchestra.' When the BBC Symphony Orchestra (BBC SO) was formed in 1930, it became the main orchestra for the concerts. At this time the season consisted of nights dedicated to particular composers; Mondays were Wagner, Fridays were Beethoven, with other major composers being featured on other days. There were no Sunday performances. With the outbreak of World War II in 1939, the BBC withdrew its support. However private sponsors stepped in to maintain the Proms, always
World War II cryptography World War II cryptography Cryptography was used extensively during World War II, with a plethora of code and cipher systems fielded by the nations involved. In addition, the theoretical and practical aspects of "cryptanalysis", or "codebreaking", was much advanced. Probably the most important codebreaking event of the war was the successful decryption by the Allies of the German "Enigma" Cipher. The first complete break into Enigma was accomplished by Poland around 1932; the techniques and insights used were passed to the French and British Allies just before the outbreak of the war in 1939. They were substantially improved by British