What did the Greek City-State of Syracuse invent to
help the Romans Navy?

What effect did the development of trade have on settlement patterns in medieval times

Well you have the answer for this question right

The question of what caused the full effects of the radical stage, also called the second french revolution by some historians, which shook the political and social reforms in france have caught the attention of many scholars, particularly because of principles implemented during this stage which is contradictory to the fundamental principle of the french revolution itself, by using dictatorship to create equality.