Well, i think the answer would be : Standardized weight and measures
Standardized weight and measures first developed by the muslim merchants in Cairo. Before this standard, Length was measured by the length of one's body.
For example to measure silk, the usually used the term such as 1 arm length.
The thing is, many traders started to hire shorter people to measure this to gain profit , making exchange often became problematic
hope this helps
American pilots helped to escort bombers which bombed Nazi war factories to stop production for the Nazi war effort. American pilots also shot down enemy planes. But mainly it was the bombers that bombed Nazi war production plants.
The first group of Puritans to make their way across the Atlantic was a small contingent known as the Pilgrims. Unlike other Puritans, they insisted on a complete separation from the Church of England and had first migrated to the Dutch Republic seeking religious freedom.
Hey you!
the answer is...(B).sharecroppers
hope it helps:)
