So this needs a couple things to be explained first:
1) The Garamentes were a advanced ancient civilization located in what is now southern Libya. Although they were located in the middle of the Sahara Desert, their civilization was able to flourish by using slaves to dig deep wells and access ground water beneath the Saharan Desert. Because of this, they had numerous small cities throughout the central Saharan Desert that lasted until the 6-7th century when their wells began to dry up.
en.wikipedia.org
2) During the late stages of the Roman Republic/early Roman Empire, the Garamantes frequently raiding the Roman province of Africa. In 19 BC, the Romans under Lucius Cornelius Balbus would actually invade the Garamantes Kingdom, and even went on to apparently explore Sub-Saharan Africa:
en.wikipedia.org
- So it would seem that the Romans had the ability to travel to Sub-Saharan Africa, but for one reason or another, permanent annexation of the Garamantes wasn't considered.
- So, let's say the Garamantes are permanently annexed and incorporated into the Roman Empire. This in turn, leads to trade with Sub-Saharan Africa. Is it possible that a power hungry Roman general takes his legion into Africa and permanently conquers the area around Lake Chad and settles the area with his legion? Then as the wells in the Garamantes Kingdom dry up, the Roman settlement loses contact with Europe, but survives as a Afro-Roman Kingdom?
1) The Garamentes were a advanced ancient civilization located in what is now southern Libya. Although they were located in the middle of the Sahara Desert, their civilization was able to flourish by using slaves to dig deep wells and access ground water beneath the Saharan Desert. Because of this, they had numerous small cities throughout the central Saharan Desert that lasted until the 6-7th century when their wells began to dry up.
Garamantes - Wikipedia
en.wikipedia.org
2) During the late stages of the Roman Republic/early Roman Empire, the Garamantes frequently raiding the Roman province of Africa. In 19 BC, the Romans under Lucius Cornelius Balbus would actually invade the Garamantes Kingdom, and even went on to apparently explore Sub-Saharan Africa:
Lucius Cornelius Balbus (proconsul) - Wikipedia
en.wikipedia.org
- So it would seem that the Romans had the ability to travel to Sub-Saharan Africa, but for one reason or another, permanent annexation of the Garamantes wasn't considered.
- So, let's say the Garamantes are permanently annexed and incorporated into the Roman Empire. This in turn, leads to trade with Sub-Saharan Africa. Is it possible that a power hungry Roman general takes his legion into Africa and permanently conquers the area around Lake Chad and settles the area with his legion? Then as the wells in the Garamantes Kingdom dry up, the Roman settlement loses contact with Europe, but survives as a Afro-Roman Kingdom?