Betsy Roddy’s family used to send a Father’s Day card each year to her great-grandmother, Sonora Dodd. The unusual practice seemed an obvious tradition to her family: Dodd invented Father’s Day. It was 1909 when Dodd suggested at a Mother’s Day church sermon that dads should have their day, too.

Today is Father's Day and families and loved ones are honoring the special man in their lives with gadgets, tools or an outpouring of love. Here's what to know about Father's Day. What is the origin of Father's Day?

Father's Day was met with some resistance when the idea gained traction in the early twentieth century. Here's a look at the holiday's history.