- 1901 - Year Book Medical Publishers founded by Dr. Gustavus P. Head in Chicago, Illinois
- 1906 - The C.V. Mosby Company incorporated in St. Louis, Missouri
- 1914 - First Mosby book in the dental field published
- 1915 - First Mosby periodical published: The International Journal of Orthodontia (still published today as The American Journal of
Orthodontics and Dentofacial Orthopedics)
- 1917 - First Mosby book in the nursing field published
- 1925 - First Mosby book in the college field published
- 1931 - The Year Book Medical Publishers incorporated; over the next 20 years, product lines expanded to include medical reference books, texts, and periodicals such as Disease-A-Month
and the Current Problems series
- 1943 - Having outgrown four previous locations in St. Louis, Mosby moves to 3207 Washington Boulevard
- 1962 - Wolfe Publishing Ltd. born in London, England
- 1967 - Acquisition of Mosby by Times Mirror
- 1970 - Mosby moves to present location: an 11 acre site at 11830 Westline Industrial Drive in St. Louis County
- 1978 - Mosby's Linn Distribution Center opens
- 1988 - Mosby acquires Resource Applications, Inc., as its continuing education division
- 1989 - Mosby merges with Year Book Medical Publishers, a sister Times Mirror company; also included in the merger were Wolfe Publishing Ltd. and PSG Publishing Company
- 1989 - American Red Cross joins in publishing partnership with Mosby
- 1990 - Mosby acquires B.C. Decker, Inc., of Philadelphia, publishers of Current Therapy and Decision Making titles
- 1992 - Mosby acquires American Safety Video Publishers, Inc., of Naples, Florida
- 1992 - Mosby and Sigma Theta Tau sponsor Nursing Approach, the first national television program for nurses
- 1993 - Mosby acquires Jems Communications, Inc., of Carlsbad, California, publishers of prehospital emergency medicine periodicals
- 1993 - Mosby's Spanish program merges with Doyma Libros SA, a major Spanish language medical and health science book publisher in Barcelona, Spain, acquired by Times Mirror de Espana
SA
- 1994 - Mosby joins its parent company, Times Mirror, and three sister companies in the formation of Times Mirror International Publishers (TMIP) to expand Mosby's editorial, sales and
marketing ventures in the international market
- 1996 - Mosby announces launch of Mosby Consumer Health, the company's newest division and the health care industry's first fully integrated comprehensive health management system
- 1996 - Mosby and Verity, Inc., a leading provider of search and retrieval applications for the enterprise and the Internet, team up to provide users of health science CD-ROMs with an
integrated World Wide Web connection
- 1997 - Mosby acquires Salt Lake City based Applied Medical Informatics (AMI), a leading provider of medical decision support technology
- 1997 - Times Mirror announces decision to combine Matthew Bender & Co., the premier source of legal commentary and analysis in the U.S., and Mosby
- 1998 - Harcourt Brace & Company acquires Mosby from Times Mirror, and forms the group
- 2001 - Reed Elsevier acquires Harcourt and Mosby joins
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