Lords, earls, knights, squires, surfs, bondsmen, dukes things like that.
i found a few sites that may have been it, but i think that those were for videogames, does anyone know the real ranking system?

More specifically I would like to know America’s ranking after the French and Indian War and after the Gadsden Purchase in 1853.

In 2004 there were 728 oldies radio station in the United States. If one station finds that 138 stations have a larger daily audience than it does, what percentile does this station come closest to in the daily audience ranking?