What did the social class with the largest number of people contribute to early civilizations?

Which of these is an edge city? boston, ma chicago, il irvine, ca detroit, mi

Which kingdom once merged with egypt? a. nubiab. bantuc. phoeniciad. babylon

The massacre at sand creek was an attack by a colorado militia on peaceful american indians. a colorado militia on a group of dakota warriors. american indians on peaceful white settlers. federal soldiers on a group of cheyenne warriors.