The Ninth Amendment of the Bill of Rights was put into the United States Constitution on September 5, 1789 and was voted for by 9 out of 12 states on December 15, 1791.
An NHL referee makes anywhere between $110000 and $255000 a year. A linesman on the other hand makes $72000 up to $162000 a year. Hope this helped.
However, many of the NFL referees are professionals making much more than $100,000 per year from their day jobs, so they are very well paid part-time officials. On the other hand, MLS soccer referees make only $500 to $800 per game, for maybe 24 games per year, and Assistant Referees make a lot less.