Describe two characteristics of classical civilizations. then, explain how those characteristics differentiate classical civilizations from early river valley civilizations.

Characteristics are:
1) Complex governments - political organizations were more developed in classical civilizations. For example Greece (in Athens free men made political decisions, democracy for adult males), in Rome there was Republic (ruled by aristocrats).
2) Trade and economic systems were more developed in classical civilizations. 
Trade routes were connected by land and sea, for example Han era in China (trade along the Silk Road).

Born in braintree (present-day quincy),  massachusetts, on october 30, 1735, john adams was the oldest of john and susanna boylston adams’ three sons. the elder adams was a farmer and shoemaker who also served as a congregationalist deacon and an official in local government