The Millennium Fund for Children was launched in 1999 with a modest goal: turn small donations into big differences in the lives of kids and their families.By many measures, the fund has succeeded, and this year is celebrating the fact it has surpassed $500,000 in grants to local nonprofit agencies devoted to early childhood education, to health and wellness or to exposure to the arts, among other missions.“Many of the fund’s grantees are grass-roots organizations,” John T.