Why were manuscripts so expensive in the early 15 century

How did the first punic war differ from the second punic war

How did the russian revolution impact world war i? a) the russians required the allied powers to come to their aid and defeat the radical groups. b) the russians pulled out from the war, enabling the germans to focus on the western front. c) the russians created new technological advancements that were used by the allied powers to win. d) the russians created a new communist government that aligned with the central powers instead.

(05.04 mc) how did the roman transportation system keep the empire strong? plz