Elisabeth Achelis
Elisabeth Achelis founded The World Calendar Association in 1930 with the goal of worldwide adoption of the World Calendar. It functioned for most of the next twenty-five years as The World Calendar Association, Inc. Throughout the 1930s, support for the concept grew in the League of Nations, the precursor of the United Nations. Achelis started the Journal of Calendar Reform in 1931, publishing it for twenty-five years, and wrote five books.
Also, Achelis wrote in 1955, "While Affiliates and Committees have over the years and still are able to approach all branches of their governments, the Incorporated Association was prevented from seeking legislation in the United States lest it lose its tax exempt status. Because of this I have been prevented from doing in my own country that which I have been urging all other Affiliates to do in theirs."