Answer:
The transatlantic slave trade began during the 15th century when Portugal, and subsequently other European kingdoms, were finally able to expand overseas and reach Africa. The Portuguese first began to kidnap people from the west coast of Africa and to take those they enslaved back to Europe.
- quoted from the BBC History: Africa and the Transatlantic slave trade
It would be between increased population, a steady stream of agricultural production, and technological advancements. As for the most important one of those three; that would be agricultural production.
1 mm = 0.0001m
450 x 0.001 m = 0.45 meters
The answer is a hope this helps!!!!
