¿Por qué se produjo la ruptura de la unidad religiosa en Europa occidental durante el siglo XVI?

Why is it useful for historians to base certain studies on the analysis of historical themes

The black hawk war began (20 points) a. sauk leaders signed the treaty of dancing rabbit creek. b. congress passed the indian removal act. c. the sauk moved onto a village established by white settlers. d. federal officials ordered the removal of all american indians from illinois.

Which is proper hierarchy or leadership roles in the senate from lowest to highest