The New Gilded Age: How Philanthropy Became Big in America : Throughline Philanthropic foundations are a fundamental part of our society: they support media, the arts, education, medical research, and more. NPR, and even this show, is supported by many personal and family foundations. But it wasn't always that way. In this episode, we go back to the beginning — the Gilded Age. We trace the birth and evolution of what many today call "big philanthropy," and ask what all this private wealth means for the public good.