1927 – He was born on the 21st of January.
1955-1966 – Dr. Butler was a principal investigator of one of the first interdisciplinary, comprehensive, longitudinal studies of healthy community-residing older persons, conducted at the National Institute of Mental Health.
1975 – He became the founding Director of the National Institute on Aging (NIA) of the National Institutes of Health.
1976 – He won the Pulitzer Prize for General Non-Fiction.
1982 – He founded the Department of Geriatrics and Adult Development at The Mount Sinai Medical Center.
1990 – He established the U.S. branch of the International Longevity Center (ILC) at Mount Sinai Medical Center.