Answer:
The answer is letter b. about 2,200 years ago
Explanation:
Eratosthenes of Cyrene was a mathematician, grammarian, poet, geographer, librarian and astronomer from Ancient Greece, known for calculating the circumference of the Earth in 200 BC. He was born in Cyrene, in Africa, and died in Alexandria. He studied at Cyrene, Athens and Alexandria. The contemporaries called it "Beta" because they considered it the second best in the world in several aspects.
To discuss their plans on invading.
Most agree that in order for a society to be considered a civilization there needs to be a system of writing, agriculture, and some kind of government that has control over the populus.
