Currently enrolling approximately 900,000 poor children each year, Head Start has served 25 million children and their families since it was established 44 years ago. Presidents and policymakers have embraced and scorned it. At times scientists have misguided it and the media has misunderstood it. Despite its longevity and renown, much of Head Start's story has never been disclosed to the general public. The Hidden History of Head Start is...