The third event was a concerted effort to transform some of the dance crazes into dances which could be taught to a wider dance public in the U.S. and Europe. Here Vernon and Irene Castle were important, and so was a generation of English dancers in the 1920s, including Josephine Bradley and Victor Silvester. These professionals analysed, codified, published, and taught a number of standard dances. It was essential, if popular dance was to flourish, for dancers to have some basic movements they could confidently perform with any partner they might meet. Here the huge Arthur Murray organisation in America, and the dance societies in England, such as the Imperial Society of Teachers of Dancing, were highly influential. Finally, much of this happened during and after a period of World War, and the effect of such a conflict in dissolving older social customs was considerable.