All regions had plantations just depends on what they were trying to grow
<span>The biggest problem faced by the early Byzantine engineers was that the growth of the city far outpaced the growth in its resources, so water and food had to be brought from the outside.The city was also under constant threat of invasion by Germanic tribes to the north and east and needed to be heavily fortified, making moving resources into the city a bit more difficult.</span>
Hudson Champlain Menendez Minuit
Answer:
They didn't want all of those horrible events to be something they, or anyone else, had to remember.
I guess the answer is that the church leaders began selling them as a way of raising money
