They were tasked with protecting the movement of trade goods. They also kept defense of the northern and western frontier against Indian and Mexican incursions, defense of the coast against Union invasion, and suppression of Union loyalists within Texas.
Answer:
No, while Arabs have made important contributions to Western Culture, their contributions have not been the most important. The most important contributions to western culture come from the Ancient Classical World: Ancient Greece and Ancient Rome, and from European contributions of the Middle Ages and the Modern Era.
The poor standing of Leopold the 2nd is most probably attributed to the role he had in the extermination of huge amounts of people in Belgian colonies at the time. This wasn't known at the time, but today we known that Leopold the 2nd had ordered a genocide over the Congonese people.
