How did the emperors of the han dynasty encourage and protect chinese culture?

Correct

They revived Chinese literature and poetry.

To protect Chinese culture the Han Dynasty decided to revive the written language that was used by people of different ethnic groups and countries from 206 BC to 220 AD. In the field of poetry, important contributions were also made that are still preserved today.

john maynard keynes developed new economic theories in response to the stock market crash of 1929. great depression of the 1930s. first and second world wars. economic boom of the 1950s.

answer: the time zones used to be whatever the local authority wanted them to be. one town might have 6am whenever the sun came up and another town had 6am 10 minutes later.  

the trains had a hard time when their orders said to be at a certain point at 6am.  

6am, but who's 6am.  

the railroads got together and set the time zones more or less along the longitude lines across the country.

explanation: