Complex sentence: By the mid-seventies, there were 5 Cavender's stores and by 1981 the name was changed to "Cavender's Boot City"-today it is called "Cavender's Western Outfitter" outside of Texas.
Split into simpler sentences: By the mid-seventies, there were 5 Cavender's stores and by 1981 the name was changed to "Cavender's Boot City". Today it is called "Cavender's Western Outfitter" outside of Texas.