1. The first u.s. team to win Stanley cup were the Seattle Metropolitans in 1917.
  2. a Luna Park is the name of many currently operating Amusement parks.  The original opened in 1903 on Coney Island in New York.
  3. Super symmetry is a symmetry of space and time, conjectured by theoretical physicists.
  4. The Maastricht Treaty entered into force on November 1st, 1993, thus creating the European Union, and leading to the creation of a single European currency at the time, the euro.
  5. Azoth was believed to be the universal medicine;  the essential agent of transformation in alchemy.  It is the name given by the ancient alchemists to mercury.