Where does the word money laundering come from?

The word "money laundering" originated in the 192s, when a financial expert of the Chicago Mafia bought a coin-operated washing machine and opened a laundry. Then, when calculating the laundry income of the day every night, he adds other illegally obtained money to it, and then declares and pays taxes to the tax, deducting the tax payable, and the remaining illegally obtained money becomes his legal income. This is the origin of the word "money laundering". At present, the meaning of "money laundering" mainly refers to the criminal activities that cover up a large number of funds obtained by illegal means such as drug trafficking, arms smuggling, corruption and tax evasion, and then enter the circulation market as legal funds.