When was Home School Valedictorian created?

There's no known widely recognized or established award or title called "Home School Valedictorian." Valedictorian is a title given by traditional schools. Homeschooling doesn't have a centralized system for awarding such a title. Homeschool graduates might receive honors from their individual homeschooling organizations or from other institutions based on their academic achievement, but there's no official "Home School Valedictorian" designation.