U.S. History
What year was the polio vaccine developed by Jonas Salk?
More Questions from U.S. History
A vaccine to prevent what terrible disease was invented in the U.S. in 1952?
Reveal Answer
What former NBA star ran for the democratic nomination for U.S. President?
Reveal Answer
In what city did Rosa Parks refuse to give her bus seat to a white rider?
Reveal Answer
A memorial of what war was opened to the public on April 29, 2004 on the National Mall?
Reveal Answer
Who did Alan Greenspan replace in '87 as Chairman of the U.S. Federal Reserve Board?
Reveal Answer
What 1996, 2000 and 2004 Presidential candidate declared the Corvair unsafe at any speed?
Reveal Answer
If Benjamin Franklin had his way, what would America's national bird be?
Reveal Answer