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Moses Cotsworth fonds
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Correspondence and Personal Notes

Series consists of letters written to Cotsworth, personal notes (mostly written on envelopes and scraps of paper), drafts of printed material that may have been used in his publications, and miscellaneous articles written by other individuals. All of the records deal with calendar reform, but the personal notes reflect the wide range of Cotsworth's interest in this matter . They include notes taken on his travels to Stonehenge, Egypt, Northern British Columbia, and Alaska. The personal notes also include descriptions, even lists, of photographs taken on his trips. The articles written by other individuals deal with calendars and religious topics.

Moses Cotsworth fonds

  • RBSC-ARC-1140
  • Fonds
  • 1908-1931

The fonds consists of textual records, photographs (prints and Negatives), pictorial images, postcards, statistical information, and maps. All of the records reflect Moses B. Cotsworth's involvement in calendar reform and his efforts to make his 13-month calendar more widely known throughout the world. Administrative records of his International Fixed Calendar League as well as papers reflecting his interests in mathematics, astronomy and astrology are included. The records have been arranged into the following series: Correspondence and Personal Notes; Newspaper Articles; Pamphlets on Calendar Reform and Related Material; Posters and Related Material; Records Relating to Egypt (Pyramids, Sphinx); Records Relating to Stonehenge; Statistical Charts and Graphs; and Records Relating to Miscellaneous Subjects.

Cotsworth, Moses Bruine

Newspaper Articles

Series consists of two folders containing newspaper clippings. The first folder contains loose clippings of articles from newspapers and journals. They deal with a diverse array of topics, most notably Stonehenge, telling or measuring time, and calendars and calendar reform. The second folder is a bound volume of newspaper clippings taken from a variety of sources covering the time period of August 4 to November 3, 1931, done by Editorial Services Ltd. on behalf of the International Fixed Calendar League. These clippings are mostly about calendar reform and the activities of the League.

Pamphlets on Calendar Reform and Related Material

Series consists of pamphlets, leaflets, reports, articles, other textual information, a scrapbook of graphical images, calendars, diverse
pictures and diagrams (for example, astronomical diagrams, pyramids, different types of calendars used through time), statistical
charts and other kinds of charts, and photographs. Cotsworth incorporates the textual information and all the different kinds of
graphical images into his pamphlets and other publications. There are photographs of the different diagrams and pictures as well as
photographs of certain pages of Cotsworth's published pamphlets.

Posters and Related Material

Series consists of posters of calendars, clocks, climactic maps, and statistical charts in differing stages of completeness. There are posters of calendars of different religions and cultures and of calendars used in ancient times. There is a set of posters that has been used by Cotsworth for demonstration purposes, and it mostly consists of statistical charts, clocks, different types of calendars, and his own 13-month calendar. There are photographs of many of the different kinds of posters. Many of the images on the posters can be found in Cotsworth's publications.

Records Relating to Clocks

File contains a pamphlet on the Zimmer Tower, two pictures of clocks, diagrams of clocks designed by Cotsworth, and photographs of clocks and his patented designs. Cotsworth applied for a patent in July 1929 for his designs of clocks and watches that function according to his 13-month calendar.

Records Relating to Egypt (Pyramids, Sphinx)

Series consists of drawings of pyramids, notes, posters in preparation, and photographs (with the accompanying negatives) taken in Egypt of the Sphinx and the pyramids. Some of the diagrams of the pyramids include astronomical measurements. Cotsworth used these diagrams to illustrate how the Egyptians measured time. These diagrams were then included in pamphlets written by Cotsworth.

Records Relating to Miscellaneous Subjects

Series consists of diagrams, pictures, pamphlets, maps, a newspaper article, postcards, articles, published journals (both loose and bound), and photographs. The records have been organised according to subject matter because they did not fit into any of the other series. They have been organised in the following way: clocks, glaciers/geological data, obelisks, picture postcards, published journals and other published materials/pamphlets, published material, miscellaneous maps, miscellaneous photographs, and published journals (bound volumes). Most, if not all, of the information in this series has been used by Cotsworth in his efforts to try to bring about changes to the Gregorian calendar. He used the information in his publications on calendar reform.

Records Relating to Stonehenge

Series consists of two monographs, posters (both finished posters and posters in preparation), drafts of diagrams and notes, two postcards, personal notes, diagrams, pictures, and photographs. It includes diagrams and photographs of Silbury Hill. Cotsworth used Stonehenge as an example of how time was measured in the past . He included the posters, diagrams, and pictures in his pamphlets on time and calendar reform.

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