In one sentence, summarize the reasons for the demise of various dynasties In one sentence, summarize the reasons for the demise of various dynasties In one sentence, summarize the reasons for the demise of various dynasties In one sentence, summarize the reasons for the demise of various dynasties In one sentence, summarize the reasons for the demise of various dynasties In one sentence, summarize the reasons for the demise of various dynasties In one sentence, summarize the reasons for the demise of various dynasties In one sentence, summarize the reasons for the demise of various dynasties In one sentence, summarize the reasons for the demise of various dynasties In one sentence, summarize the reasons for the demise of various dynasties In one sentence, summarize the reasons for the demise of various dynasties In one sentence, summarize the reasons for the demise of various dynasties In one sentence, summarize the reasons for the demise of various dynasties