Name The Year: Johann Lukas Schonlein, helped establish scientific medicine?

Questions

snow crash: name the book's main character?

snow crash: name the mafia henchman who wields reason:?

snow crash: what does "ultima ratio regum" mean?

oddities: this game (involving a net) was introduced in 1874 as sphairistike?

oddities: this man was time magazine's 1938 "man of the year"?