Which statement is true about Russia in the seventeenth and eighteenth centuries? A. In Russia, serfdom was not as strong as it was in most of western Europe.
B. Russia had more year-round, ice-free seaports than western Europe.
C. Most Russians embraced western culture.
D. Russian rulers largely kept to themselves and ignored what was going on in western Europe.

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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:

d) a week

because the land run of 1889, although not without precedent in the history of the west, further, their men were aboard the first trains, ready to jump off and begin staking their claims. oklahoma city, edmond, and guthrie were all so affected.

it was the first major victory for the colonists.