in china between 1958 and 1961 mao zedong great leap forward an effort to make china an industrial power through mass collectivization of agriculture is best understood as an example of

Great Leap Forward, in Chinese history, the campaign undertaken by the ... in large-scale rural communes, to meet China's industrial and agricultural problems

Explanation:

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:

the china one is last

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