"Now when my gun breaks, I can have just one piece of it replaced, and it's as good as new" What new technological advancement made this situation possible and who invented it?

During the growth of colonial america, people saw the need for a colony between south carolina and the spanish in florida. james oglethorpe and 19 settlers were told to start the colony of georgia. which coastal city did oglethorpe and his settlers found? a. jamestown, virginia b. savannah, georgia c. st. augustine, florida d. atlanta, georgia