The Advisory Committee that drafted the new Rule 23 in the mid-1960s was influenced by two major developments. First was the suggestion of Harry Kalven, Jr. and Maurice Rosenfield in 1941 that class-action litigation by individual shareholders on behalf of all shareholders of a company could effectively supplement direct government regulation of securities markets and other similar markets. The second development was the rise of the civil rights movement, environmentalism and consumerism. The groups behind these movements, as well as many others in the 1960s, 1970s and 1980s, all turned to class actions as a means for achieving their goals. For example, a 1978 environmental law treatise reprinted the "entire" text of Rule 23 and mentioned "class actions" 14 times in its index.