Why was the conquering of Constantinople in 1453 important?

Related questions

1. What led to the fall of the Roman Empire?
2. Who built Istanbul?
3. What did Constantinople become?
4. When was the Byzantine Empire most powerful?
5. What led to the fall of the Byzantine Empire?
6. How many times has Rome been sacked?
7. Was Constantinople a Roman city?
8. Why was 1453 a turning point in history?
9. What is the Byzantine empire best known for?
10. What religion was the Byzantine Empire?

Tags

1. #roman
2. #ended
3. #expansion
4. #ottomans
5. #began
6. #turks
7. #first
8. #capture
9. #constantinople
10. #southeastern
11. #number
12. #europe
13. #eastern
14. #empire
15. #important
16. #ottoman
17. #mediterranean
18. #period
19. #reasons
20. #power
21. #significant