What causes is going to split into sunni and shia branches

When creating the treaty of versailles, each member of the 'big three' had different agendas. how did each member want to deal with rebuilding europe?meee lol in advance!

Which source would best a historian understand the effect of the great chicago fire on families? a. a biography of a chicago family displaced by the fire b. a letter from a grandmother in new york to her family in chicago c. a newspaper editorial about families who were displaced d. an oral history dictated by an adolescent who fled the fire

Brianliestttme : ) -why was pakistan created?