Misc: All times hamlet was the prince of ______?

Questions

Until the dinner plate was introduced in the 15th century, it was customary to eat on what?

Upon his death in 1931, all non essential lights in the U S were turned off for one minute in his honor?

Vancover Island & British Columbia became one colony in?

Vanilla is the extract of fermented & dried pods of several species of what?

Varietal name applied to two different minerals?