City-states came first , hope thats helps :)
Answer:
Primary sources is the answer
It exchaged the. splended cultures of China
A successful adherence to the good neighbor policy is that the U.s Platt amendment establishes an economic protectorate of Cuba. Other options are negative negotiation between two neighboring countries. Platt Amendment<span> was passed as part of the 1901 Army Appropriations Bill. It stipulated seven conditions for the withdrawal of </span>United States<span> troops remaining in Cuba at the end of the Spanish–</span>American<span> War.</span>
