Most tribes come and go/conquered or mix in
Franks successful in settling - Establish roots
Answer:
Then humans showed up. Today, the Sahara Desert is defined by undulating sand dunes, unforgiving sun, and oppressive heat. But just 10,000 years ago, it was lush and verdant.
Explanation:
Military presence
Self rule
Trade
Slavery / Mulados/ Creoles/ etc