The first Father's Day was observed on June 19, 1910 in Spokane Washington. At about the same time in various towns and cities across American other people were beginning to celebrate a "father's day." In 1924 President Calvin Coolidge supported the idea of a national Father's Day. Finally in 1966 President Lyndon Johnson signed a presidential proclamation declaring the 3rd Sunday of June as Father's Day.
Father's Day has become a day to not only honor your father, but all men who act as a father figure. Stepfathers, uncles, grandfathers, and adult male friends are all honored on Father's Day.