What was the main effect of the fall of constantinople in 1453?

european forces quickly moved to retake the city.

centuries of widespread persecution of jews and christians occurred.

the byzantines moved northeast and formed the russian empire.

overland trade routes to asia were closed.

Why are primary sources important when studying historical events

The battle of sabine pass is important because? a) it was a stalemate between union and confederate armies. b) it resulted in the largest confederate casualty in the war. c) it marks the failed attempt of the union army to invade the confederate state of texas. d) it was won by the union soldiers and marked a turning point in the western front of the war.

What event ultimately started world war 2 and ended britain and frances attempt to prevent war?