It's been fifty years since the first Peace Corps volunteers were sent overseas as working ambassadors to the world.
It was part of President John Kennedy's call for Americans to do something for their country.
The Peace corps, from the beginning, has generally worked in under-developed countries on social and economic programs- everything from helping create clean water systems to encouraging sustainable agriculture.
Wednesday at Bradley University, former Peace Corps workers and potential volunteers heard the head of the Agency describe the experience as "life changing".
"Because it gives you a chance to learn more about how you can serve--which is the noblest calling of any human being. You work shoulder to shoulder with people in different societies and different cultures , working on things they deem important to them. You can make a difference in their lives. And, for yourself, you're tested in ways you never even imagined," said Aaron Williams, Peace Corps Director.
There are currently some 86-hundred Peace Corps volunteers serving in seventy-seven countries.