Name that largest artificial lake built in the 11th century

the lake is the bhopal lake

the bhopal lake was the largest artificial lake

answer; ///i believe that one(1) of the issues was how to count slaves for the purpose of determining the number of a state's representatives in the house of representatives; how slaves would be counted for

for many centuries there were important factors which the economies of the muslim empires developed increasingly. they applied economic procedures in production, investment, finance, taxation and property. they used to tax certain goods (for example: harvest), they charged interest on money lent, they signed contracts with merchants; they relied on a common currency, and they used checks as well as promissory notes. with the money collected by means of taxation, the government provided the needy with an income. in addition, trading networks covered huge distances, so far regions started to have contact and exchange goods. this trade network covered areas of asia, africa and europe.