Constant conflict with the Manchu left the Ming Dynasty weary. Between 1623 and 1628 they failed and were unable to recapture rule over the Manchu. The Manchu were able to infiltrate the ranks of the Ming Dynasty, enlisting Ming officials as advisors. By 1636, the Manchu campaign had been so successful, their leader was able to declare the beginning of the Qing Dynasty. In addition, defeat of traditional ally, Korea by Manchu forces lead to reunification of the Ming Dynasty by Korean officials.
mannchus
One important reason for the abrupt decline and fall of the Qing dynasty was the intense external pressure applied to Chinese society by the modern West.
ming
the Song Dynasty-NovaNET answer
The fall of the Zhou Dynasty was caused by internal strife, external invasions, and the weakening of central authority. Over time, regional rulers gained more power and autonomy, leading to the eventual collapse of the dynasty.
mannchus
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The factors which caused to the down fall of china were ineffective rulers, corrupt officials , and a government that was out of money. The last nudge which caused this were the Manchus which invaded china leading to the collapsing of the Ming dynasty.
There has never been a hand dynasty
One important reason for the abrupt decline and fall of the Qing dynasty was the intense external pressure applied to Chinese society by the modern West.
The trains being late in Brussels on the 25 Oct 1984 was not a reason for the fall of the Han dynasty.
ming
It's takeover by Rome.
the Song Dynasty-NovaNET answer
The fall of the Zhou Dynasty was caused by internal strife, external invasions, and the weakening of central authority. Over time, regional rulers gained more power and autonomy, leading to the eventual collapse of the dynasty.
During the 276 years of its existence, the Ming Empire had wars and skirmishes with a number of its neighbours. Notable are the wars fought in Korea against the Japanese, the recurrent invasions of the Mongols that had to be fought off, and finally, the invasion of the Manchus that led to the fall of the Ming Dynasty.
If you mean The Decline and Fall of the Roman Empire, it was Edward Gibbon.