Why were the fall of Constantinople so significant and what date did it occur?

Constantinople fell May 29, 1453.

The reason why the falling of Constantinople was so significant was because it was one of the major turning points in history. The falling affecting trade, influenced the Renaissance, and expanded the Ottoman empire. This was especially significant for Islam because it represented a MAJOR defeat for Christians. Muslims during this time rejoiced because of Constantinople's falling. The falling also represented the end of the Eastern Roman Empire and the rising power of the Ottoman Empire & Islam. A good portion of the world during this time were affected by the falling of this great empire.

explanation:

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in his book, the riddle of the rosetta stone, james giblin talks about how there was a young british polymath and physician named thomas young who made a lot of advances on the deciphering of the rosetta stone. he says that even though young made a lot of mistakes because he was working under false assumptions, he also made huge contributions like deciphering three out of the seven symbols (more than anyone else before him). young published his findings and continued his good work but he wasn't able to progress much further due to some unfavorable situations, he still laid the basis for many other scholars and of course for the man who has been generally known to have deciphered it, jean-françois champollion