A dam was a small Indian copper coin. The coin was first introduced by Sher Shah Suri during his rule of India between 1540 and 1545, along with Mohur , the gold coin and Rupiya the silver coin. [1] Later on, the Mughal Emperors standardised the coin along with other silver (Rupiya) and gold (Mohur) coins in order to consolidate the monetary system across India. A rupee was divided into 40 dams. [2]
It is believed that this coin is one of the possible sources for the English word "damn" and the phrase "I don't care a damn", due to its small worth. [3] [4]