Because Union and strikes were banned by the government WORKERS' WAGES DECREASES.
By abolishing Unions and the right of the workers to stage strike, the government gave enormous power to the industrialists and this led to decrease in the wages of the workers. This was majorly because, the employers knew that the workers have no other choice but to accept what they are offered.
Answer: Griots.
Explanation: I may be wrong about this one, but it would make sense. The would memorize births, deaths, natural disasters and more. After that, they would pass it on to the next generation. By the way, I too am from CCA.
What was the whole question?