They were the main reason for the fall of Constantinople. They were elite forces of #Ottoman Empire comprised of young Christian boys which were captured by #Turkish Army from Christian states.
#HagiaSophia
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They were the same forces which conquered and turned the #HagiaSophia into a mosque.
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web.archive.org/web/2018120314…
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Sultan Murad I, started a blood tax system known as devşirme, or “gathering,” for Christian land
books.google.co.in/books?id=FbEAA…
![](https://pbs.twimg.com/media/EcuW01aUMAYgu75.png)
They trained these boys for over 6 years. During this time they were drilled and trained to use a variety of weapons, including bows, muskets, javelins, and swords.
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The same forces which gave #Ottoman Empire its zenith were destroyed by the sultan of the same Islamic Empire.