Soviet tanks and troops were sent to crush a democratic , anti-communist revolution in 1956 in? a) romania b) czeoslovakia c) hungary d) bulgaria

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:

i normally just use

besides the fact that abraham lincoln abolished slavery, and greatly benefit black people, he had a heavy impact of the definition of what democracy was, and should be.

the answer is b: an economic crisis throughout the country.