Trade was a lot more difficult and complicated because every currency was worth something different.
Yes, imperialism exists in the modern age. They are not exactly the same as the ones we read in our textbooks, but they do still exist in modern age. An example is Cultural imperialism. Where America influences others through the internet such as social media, music, brands, moves etc.
Explanation:
development(Noun) The process by which a mature multicellular organism or part of an organism is produced by the addition of new cells. The organism has reached a crucial stage in its development. development(Noun) Something which has developed.