Answer:
Silk was even used as money during some Ancient Chinese dynasties. Silk became a prized export for the Chinese. Nobles and kings of foreign lands desired silk and would pay high prices for the cloth. The emperors of China wanted to keep the process for making silk a secret.
Explanation:
North Korea I think hope this helps
Fidel Castro nationalized the Cuban economy and placed the government at the center of the economy. He repressed the civil liberties of all citizens and banned free media. He also banned Cubans from travelling out of the country as well as the sale of private property