Para saber La importancia de estudiar historia está en el conocimiento de nuestro pasado.
Answer: Qin Dynasty
Explanation:
The Great Wall of China's history began in the Spring and Autumn Period (770–476 BC), was first completed in the Qin Dynasty (221–206 BC), and was last rebuilt as a defense in the Ming Dynasty (1368–1644).
I'm pretty sure it would be B, because the tensions between most groups are mainly to do with religious differences, especially relating to the belief of how many gods exist.
The amount of African Americans holding public office rose.