May
7
“The organization was renamed the Center for Disease Control (CDC) on June 24, 1970, and Centers for Disease Control effective October 14, 1980. An act of the United States Congress appended the words “and Prevention” to the name effective October 27, 1992; however, Congress directed that the initialism CDC be retained because of its name recognition.” — Wikipedia
What would we do without Wikipedia?
See Dee see pee?