Simplify the following text for a Grade 8 native English-speaking person.
Original: The first performance of Siegfried took place when the whole Ring cycle ( all four operas ) were performed in the Festspielhaus in Bayreuth on 16 August 1876 .
Simplified: It received its premiere at the Bayreuth Festspielhaus on 16 August 1876 , as part of the first complete performance of The Ring .