who was the pope when the by Byzantine Empire requested aid from the church due to the Turkish treat

What is the main difference between primary and secondary sources? a. primary sources are historical documents, and secondary sources are modern-day documents. b. primary sources are derived from museums and archives, and secondary sources are created by history students and academics. c. primary sources are found in ancient places with a rich history, and secondary sources are found in historical journals and blogs. d. primary sources are created during a particular historical era, and secondary sources are created by studying primary sources.

How did the political climate in italy change after unification

How does smith characterize the colonizing effort and why does he so characterize the effort to settle jamestown?