On July 5, 1908, a West Virginia church sponsored the nation’s first event explicitly in honor of fathers, a Sunday sermon in memory of the 362 men who had died in the previous December’s explosions at the Fairmont Coal Company mines in Monongah, but it was a one-time commemoration and not an annual holiday.

The next year, a Spokane, Washington, woman named Sonora Smart Dodd, one of six children raised by a widower, tried to establish an official equivalent to Mother’s Day for male parents. She went to local churches, the YMCA, shopkeepers and government officials to drum up support for her idea, and she was successful: Washington State celebrated the nation’s first statewide Father’s Day on June 19, 1910.

In 1916, President Wilson honored the day by using telegraph signals. In 1924, President Calvin Coolidge urged state governments to observe Father’s Day. Today, the day honoring fathers is celebrated in the United States on the third Sunday of June. In other countries–especially in Europe and Latin America–fathers are honored on St. Joseph’s Day, a traditional Catholic holiday that falls on March 19.

Research from History.com and Wikipedia.