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Interested in disability history? Check out what happened Today in AT History!

April 12

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Health & Science

  • 1955 - Salk vaccine for polio is declared "safe, effective and potent."[1]


Births


References

  1. March of Dimes Milestones and Timeline. March of Dimes. 2008. Accessed on February 4, 2008.
  2. "Dave Barr." Motorcycle Hall of Fame. 2008. Accessed on May 22, 2008.