Answer: because Teachers are not good enough And Books are written as a list of events, not a chain of cause and effect.
Answer:
I dont know but i just need to answer this cause i also have a queation
Byzantine art and architecture was influenced by Roman art and architecture blended with elements of Eastern styles in Byzantine art and architecture.
The cresent moon on the finial on the top of the Taj Mahal is evidence of Islamic architectural influence.
Political corruption
Government jobs were being given out based on favors and deals for votes. Unqualified people were working in government jobs and often the corrupt deals led to more corruption.
The bosses and the system created by the bosses were the source of much of the corruption. City bosses gained votes for a political party in return for government jobs under the party's administration. Government jobs were good paying and were circling in the same groups of people.