What caused Martin Luther to seek change within the Catholic Church?

What happened 10 million years ago? if u answer, u get 50 ! plz answer ; -;

Which government entity is given the task of initiating articles of impeachment against the president when the need arises

What ideas, institution, and causes became the focal points of chinese and islamic resistance respectively to the west in the latter half of 19th century and the first decades of the 20th