I read this in the NY Times. "On Feb. 23, 1954, the first mass inoculation of children against polio with the Salk vaccine began in Pittsburgh."
And remember getting the oral vaccine in paper cups?
There are many things we don't perhaps pause to appreciate. Not having to worry about polio seems like a biggie.
On another note, I read that recycling one car battery can save 3 pounds of plastic, 21 pounds of lead, and 1 gallon of sulfuric acid. It seems astonishing, but, so it is.