Simplify the following text for a Grade 9 native English-speaking person.
Original: Arby 's was founded in Boardman , Ohio , in 1964 by Forrest and Leroy Raffel , owners of a restaurant equipment business who believed there was a market opportunity for a fast food franchise based on a food other than hamburgers .
Simplified: Arby 's is an international chain of fast food restaurants started by Forrest and Leroy Raffel in 1964 in Boardman , Ohio .