Misc: What age preceded the iron age?

Questions

Trivia : Which director/producer started his career as a student with the film THX-1138 which he later reworked for his feature-directing debut?

Trivia : Which U.S City is the home of the Mowton Record Company?

Trivia : Which martial art has a name that originates from the Japanese word for "gentle"?

Trivia : In the first modern summer Olympic games in 1896, how many countries competed?

Trivia : What device is normally used to measure wind direction?