Which civil liberty was most seriously threatened during the period shown on the time line? A. the right to bear arms
B. Freedom of speech
C. the right to petition the government
D. freedom of religion

The answer for that question is the first one , which is a , 1 atm

Though typically, that which is called the  great schism  refers to the east-west  schism. it was the greatest  effect  of the east-west  schism  was the creation of two separate churches that had previously been mixed under one church, the eastern orthodox church and the roman catholic church.