Father's Day
Father's Day was not celebrated in the US, outside Catholic traditions, until the 20th century. As a civic celebration in the US, it was inaugurated in the early 20th century to complement Mother's Day by celebrating fathers and male parenting.
After Anna Jarvis' successful promotion of Mother's Day in Grafton, West Virginia, the first observance of a "Father's Day" was held on July 5, 1908, in Fairmont, West Virginia, in the Williams Memorial Methodist Episcopal Church South, now known as Central United Methodist Church. Grace Golden Clayton was mourning the loss of her father, when in December 1907, the Monongah Mining Disaster in nearby Monongah killed 361 men, 250 of them fathers, leaving around a thousand fatherless children. Clayton suggested that her pastor Robert Thomas Webb honor all those fathers.
Mother's Day
Mother's Day in Egypt is celebrated on 21 March, the first day of spring in the northern hemisphere. It was introduced in Egypt by journalist Mustafa Amin in his book "Smiling America" (1943). The idea was overlooked at the time. Later Amin heard the story of a widowed mother who devoted her whole life to raising her son until he became a doctor. The son then married and left without showing any gratitude to his mother. Hearing this, Amin became motivated to promote "Mother's Day". The idea was first ridiculed by president Gamal Abdel Nasser but he eventually accepted it and Mother's Day was first celebrated on 21 March 1956. The practice has since been copied by other Arab countries.