Misc: What year was the first commercial opera house opened?

Questions

What was Early Bird?

What did early sailors call the islands where cinnamon,cloves and nutmegs were grown?

Which holy man became a favorite of the Tsars family just before the russian revolution?

In which town in the US did the Gunfight at the OK Corral take place?

Who wrote the horror story The Pit and the Pendulum?