23 February 1954 February 22, 2013 Author: Staff The first mass inoculation of children against polio with the Salk vaccine began in Pittsburgh, USA. Famous Words of Inspiration..."Love is the word used to label the sexual excitement of the young, the habituation of the middle-aged, and the mutual dependence of the old." John Ciardi — Click here for more from John Ciardi Related posts: 14 September 1954 22 April 1954 23 February 2005 Categories: History Tags: 1954, 23 February