On Sunday, June 20, dads across the United States will be showered with gifts as we celebrate Father’s Day. The first Father’s Day included a church service where daughters would hand red roses to their fathers during the mass. Not everyone was happy with the idea of making Mother’s Day and Father’s Day separate holidays. In the 1920s and '30s, there was a movement to get rid of Mother's Day and the burgeoning Father's Day celebrations and instead join the two holidays as a unified Parents' Day. Father's Day is a big day for the humble greeting card.