Sassafras root is still used to flavor traditional root beer, although since sassafras was banned by the U.S. Food and Drug Administration because of the carcinogenicity of its constituent safrole, most commercial recipes do not contain sassafras. Some commercial root beers do use a safrole-free sassafras extract.
There are usually 18 holes in a golf course; some have 9 holes or some multiplier of 9 holes. I have played at golf clubs with 9, 18, 27 and 36 holes. However, a standard round of golf at most golf clubs / courses involves 18 holes.
A scratch golfer averages a par on each hole of a full 18-hole course, and a bogey golfer would average a bogey on the same course. Since a bogey is one stroke above par per hole, a bogey golfer would average a score of 90 on a typical par 72 course and have a handicap of 18.