In ancient and medieval times was a common practice the castration of vanquished enemies after the battles. A historian of the Seljuk sultans told a tale in which after a great victory over the the last of the Khwarazmians, the turk Seljuk Key Coubad ordered the testicles or scrotums of thirty thousand defeated army soldiers joined together to produce three hundred tents - a task which apparently occupied the greater part of the army for five whole days, but produced what was described as a memorable memento of the battle!
"These mass castrations were done just after the battles, in order to sell the new eunuchs to the merchants of slaves that usually followed the armies".
by Willhelmina Plowes May 6, 2013