International House of Pancakes or IHOP for short, was founded in 1958 by Al and Jerry Lapin. The first location was in Toluca Lake, California.
In 1960, the company begins franchising and in 1961 the company goes public.
In 1973, the acronym IHOP is introduced in their marketing for the first time.
In 1985, the Rooty Tooty Fresh N’ Fruity is introduced.
In 1992, the 500th IHOP location opens. In 2001, the 1000th IHOP location opens.
In 2007, IHOP’s parent company DineEquity successful acquires the Applebee’s chain of restaurants.
Today, IHOP operates over 1500 restaurants in the US, mostly franchises.