What was one reason the Ming dynasty lost political power?

Historians are concerned with the accuracy of their writings and readings but are also aware of the inability of authors to know every angle of every story biases, perspectives, beliefs, and a variety of other differences history being told by one person at a time no one being totally accurate, as hard as we try really need on this, and you^^

When was wheeled traffic permitted in early rome? daytime nighttime all day never

What was the significance other than the obvious harm to us forces of the terror attack on the uss cole in 2000