Name The Year: Napoleon's retreat from Russia begins.?

Questions

Who wrote the score for the ballet Coppelia of 1870?

Two popular one-act operas are often paired together to form anevening's bill: I Pagliacci by Leoncavallo and Cavalleria Rusticana by whom?

Alexander Glazounov (1865-1936) was which of the following?

To whom was Rossini referring in the phrase "The Mozart of theChamps-Elysees"?

For which British monarch's water party did Handel write his WaterMusic?