Presidential Peace Conference Program 5.25.17
An astounding testament to human progress. #WorldPolioDay pic.twitter.com/LCs6rzv8eH — Melinda Gates (@melindagates) October 23, 2016
An astounding testament to human progress. #WorldPolioDay pic.twitter.com/LCs6rzv8eH
— Melinda Gates (@melindagates) October 23, 2016