The story
Founded by Daniel Collamore Heath and Edwin Ginn in 1885.1
19th century
One of the firm's founders, Daniel Collamore Heath, stated that he had founded the company "for the purpose of providing tools for the new education".
1980s
D.C. Heath started a small division of software editors to supplement the textbooks in the early 1980s. The editors strove to make the software packages independent of the books. (Note-these editors were former teachers) There were test banks that allowed teachers to pick and choose questions for their quizzes and tests. Development was further supported to enable teachers to create their own questions including a formula editor, tagging items by objectives, and including custom graphics in the question as well as in the answer key. This was for the Apple 2 then later Windows and Macintoshes. Many titles were commissioned for the areas of science, math, reading, social studies, and modern languages. These were interactive original programs. D.C. Heath gave this group their own identity, Collamore Educational Publishing. The editors were involved in all facets of the publishing process including contracts, development, design, publishing, marketing, and sales. Schools were just transitioning from the one computer classroom to the computer lab. In 1988 most of the software was being supported by William K. Bradford Publishing Company composed initially by D. C. Heath / Collamore personnel.
From Wikipedia’s article on D. C. Heath and Company, shared under CC BY-SA 4.0.3