How and why has civilization changed overtime?

What is the correct definition of the end of the Cold War? Who proclaimed the beginning of the crusades? What were the three points of metternichs plan for euroope? When were formal waistcoats created? From which month in Punjabi calendar started in English calendar? How did the Justinian help to strengthen the byzantine empire? What was the roman republic wrecked by? How many miles is the Grand Canal? What is the origin of the word sophisticated? What was One of the benefits that the Mongols brought to Russian lands was? What is the origin of the name Curzon? Which century was the year 692? What was the role of a scop in the medieval mead hall? How were the lives of serfs and lords different? What Two items did the Romans borrowed from the Greeks? Who dealt with the major crimes in the middle ages? What is ad-zap? How did western rancher and farmer get their products to eatern markets? Who was born in 570 ce? Describe the degeneration of the idealism of the first Crusades into the blatant opportunism of the later Crusades?