We probably wouldn't have had as much technicologic inventions and the leader system would probably be messed up as well.
I believe it was the use of poisonous gasses, which they not only used on the Jews but in war too......., or The newly created Machine gun<span />
Major Causes and Long-term Effects of the Fall of Constantinople<span>. The </span>fall of Constantinople<span> relates to the capture of the capital of the Byzantine Empire by the Ottoman Turks. The battle lasted from April 6 to May 29, 1453. Thats all I really know</span>
The Sierra Nevada is the mountain range that is between the Central Valley depression and the Basin and Range Provice