When Was The First Fast Food Chain Created

When Was The First Fast Food Chain Created
When Was The First Fast Food Restaurant Created
When Was The First Fast Food Chain Made
When Was The First Fast Food Chain Opened
When Was The First Fast Food Restaurant Made
When Was The First Fast Food Restaurant Established
When Was The First Fast Food Restaurant Opened In America
When Was The First Fast Food Restaurant Built
When Was The First Fast Food Restaurant Opened In The United States
When Was The First Fast Food Restaurant In Bahrain Established