Which empire or dynasty introduced the concept of mandate of heaven, made great advances in iron technology, and invented a new form of portable money?

Which physical feature minimizes population density in northern africa?

Two gymnastics teams are intense rivals. the first team has started recruiting new gymnasts from different cities and even foreign countires in an effort to build a stronger team. after learning this, the secondteam begins its own recruitment campaign to find better gymnasts. over a period of months, each team recruits dozens of players, each time trying to find a better recruit than its rivals most recent addition. which idea from the cold war is most similar to this scenario

Where did industrial capitalism originate and what advantages did this location have