Janizaries, a Turkish military force organised in 1330, and more perfectly in 1336; composed originally of Christian youths taken prisoners in war or kidnapped, and trained as Mohammedans; from being at first 10,000, and fostered by the privileges granted them, increased to 300,000 or 400,000 strong, till they became unruly and a danger to the State, when, after various unsuccessful attempts to crush them, they were in 1826 overborne by the Sultan Mahmoud II. and dissolved.
Definition taken from The Nuttall Encyclopædia, edited by the Reverend James Wood (1907)
Janin, Jules Gabriel * Jannæus, Alexander