They devised a new economic policy to ensure the profitability of the colonies as Europeans expanded their market reach into the colonial sphere. European perceptions of wealth from the 1500s to the late 1700s were shaped by the philosophy of mercantilism. Mercantilism held that there was only a limited amount of wealth in the world, as measured in gold and silver bullions. Nations had to amass wealth in order to gain power by mining these precious raw materials from their colonial possessions. Mercantilists did not believe in free trade, arguing instead that to create wealth and improve state power, the nation should control trade. Colonies existed to strengthen the colonizing nation in this view.
Answer: New technology methods
Explanation: Techonology itself is developing quick from day to day. It is important to try and add new things that can improve it. So developing a specific method that is very well planned and established can advance technology.
It was in Roman territory which was filled with cultural diffusion. Rome tolerated all religions as long as people payed taxes to the emperor to keep the peace. The emperor allowed other culture and religion so there wouldn't be an revolts against their own people. Later on a bad emperor Nero blamed Christians for a fire which changed things which led to the fall of Rome. Hope this helped!