Feudal system
there are things called ranks not levels, your welcome there are six things called ranks not levels.
The lower ranks are called kyu. Depending on the style there are anywhere from 6 to 15 kyu ranks. The Higher ranks usually referred to as black belts are called Dans.
Ranks?
The lower ranks are called kyu. There are six to twelve of them depending on the school. The higher ranks are called dan.
Wyoming did you know that? cool, huh.
Jim Crow laws.
Janlsaries
Over weighted people
nobility
I highly doubt there are any public servers that give ranks out free, I give ranks out freely to people who play on my server... but it's private.
Many of those serving in the armed forces get quite healthy salaries. It is only the newest and lowest ranks that get what might be called a bad salary.
There are no "ranks". Some people may study Islam enough to for judgment of certain matters are called "mufty". Other people may memorize the Qura'an or have beautiful voice when reading the Qura'an they become prayer leader "Imam" or prayer caller "mo'athen". But it is not a rank, they are not better than other muslims, just have jobs within the comunity.