The meaning of this quote "A leader is best when people barely know he exists; when his work is done, his aim fulfilled, they will say; we did it ourselves" means if the leader is unknown to many people once he has finished or achieved a remarkable goal other people (such as Laozi) can steal the glory and be remembered for something they didn't do.
It was the spanish crown attempted to define the status of the indian population in its american colonies. It was basically when the people went from muslim to jews from the reconquest of the muslim spain. Muslim spain was when musilms took over the spain. Hope this helps. P.s this information was from my text book but I changed it into my own words.
Answer:
The increase in agricultural production and technological advancements during the Agricultural Revolution contributed to unprecedented population growth
Explanation:
B. It reserves powers not given to the federal government for the states.