Why do we celebrate Father's day?

It was first celebrated on June 19, 1910 in Spokane, Washington at the YMCA by Sonora Smart Dodd. She heard about Mother's Day in 1909 and told her pastor she thought fathers should have a similar holiday. Her father raised six children as a single parent. The local clergymen agreed to the idea and the first Father's Day sermon was given on June 19, 1910.