1933
Born to David S. and Florence F. Kaplan in Syracuse, NY.
1954
Earns a Bachelor of Arts, magna cum laude, from Syracuse University.
1957
Earns a Doctor of Medicine from the State University of New York (SUNY) at Syracuse.
1957
Is a medical intern at the Albert Einstein Medical Center in New York City.
1958
Is a psychiatry resident and chief resident at SUNY Upstate Medical University at Syracuse through 1961.
1961
Marries Sandra Ecker Kaplan on May 14.
1961
Begins working as an instructor before becoming a professor at SUNY Upstate Medical University at Syracuse.
1965
Is the co-editor of International Psychiatric Clinics, Volumes 2 and 3.
1967
Serves as a commander within the Medical Corps of the US Navy.
1967
Is a lecturer at the Washington School of Psychiatry through 1969.
1981
Is a visiting scientist at The Tavistock Psychiatric Center in London, England.
1982
Is a consultant psychiatrist for Syracuse University Health Services through 1987.
1987
Is professor and chair of the department of psychiatry at SUNY Upstate Medical University at Syracuse until 1999.
1990
Serves on the board directors of the Syracuse Symphony through 1999.
1999
Is named professor and chair emeritus of the department of psychiatry at the SUNY Upstate Medical University at Syracuse.
2020
Is a Distinguished Life Fellow of the American Psychiatric Association.