What is the supreme law of the land? and why is it called that?

from what a read

Explanation:

The U.S. Constitution calls itself the "supreme law of the land." This clause is taken to mean that when state constitutions or laws passed by state legislatures or the national Congress are found to conflict with the federal Constitution, they have no force.

USE OWN WORDS

hello,

  i would that it was because no matter how hard people worked everyone would be paid the same, witch it was a that the russian to rule.

have a great day

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: