From Roger Sale’s Writing a History of Seattle, a 21-part series broadcast on KRAB radio in 1970 and rebroadcast in 1975.

Between 1900 and 1915 Seattle experienced huge economic growth. In the midst of this boom, societal changes began to occur and a class war developed in Seattle. The affluent were standing aside, while the middle class was becoming more moral and patriotic. The left was typically progressive and included new radicals. Seattle was becoming more radical and more bourgeois at the same time.