Batman (unit)
The batman was a unit of mass used in the Ottoman Empire and among Turkic peoples of the Russian Empire. It has also been recorded as a unit of area in Uyghur-speaking regions of Central Asia. The name is Turkic (Ottoman Turkish baṭmān; Chagatai bātmān), but was also sometimes used for the equivalent unit in Persia ( من, man). The equivalent unit in British India was anglicized as the maund. The value of the batman (or maund) varied considerably from place to place.
Read more about Batman (unit): Origins, Ottoman Empire, Central Asia, Idel-Ural, Persia