How did the crusades help to weaken the byzantine empire?

Which two of the following describe prohibited actions laws of war? How quickly after D-Day did the Allies liberate Paris What does this indicate about the relative strength of the Allies and the Axis forces? What comes first in alphabetical order neighbor or neighborhood? What if any organism is most closely related to the rayfinned fish? Who is the only president facing right on a US coin? What happened as a result of Sam Adams' circular letter of 1768? Historians agree that the Japanese surrender after atomic weapons were dropped on Hiroshima and Nagasaki is mostly coincidental and not directly related to the bombing of those two cities. TRUE OR FAL? What was the Egyptian crocodile like and why did the Egyptians worship him? Which emperor renamed Byzantium in honor of himself? What did Henry grady mean by the new south and what did he hope to accomplish by promoting it? What settlers claimed New Jersey? Why was the Eastern Empire stronger than the Western Empire? What element of the periodic table is named after Glenn Seaborg? Was Ned Kelly a Christian? What was Albert Einstein's country of origin? What is Romans 3 21-24 in the Bible saying? Does Zeus the great Greek god take over Olympus? When did the Soviet Union dissolve? What is the best settlement to live? When did the French Second Republic end?