UCSD Amateur Choral Singing in England and Germany in Nineteenth Century Discussion

I need help with a Music Theory question. All explanations and answers will be used to help me learn.

Discuss the rise of amateur choral singing in England and Germany in the 19th century. What other forms of social organization and group identity were fostered by choral singing? Think about national identity, class, religion and gender. In what ways did works like Handel’s Messiah and/or Brahms’s German Requiem lend themselves to supporting these group identities?