Name The Year: William Butler Yeats Irish poet, dies in France at 73.?

Questions

By what process is chromium applied to car parts?

What did Mary Baker Eddy found in the late 1800s?

What is the name for a waterproof trousers with bib worn by skiers?

What piece of operatic music accompanies the transformation of a russian prince into a vengeful insect?

Ursa minor is the name of a group of stars,what does it mean?