Question: When did it become necessary to have a driver's license?
qaPairs: question: When did it become necessary in Massachusetts  to have a driver's license?
answer: 1903
question: When did it become necessary in Missouri to have a driver's license?
answer: 1903
question: When did it become necessary in Michigan to have a driver's license?
answer: 1908
question: When did it become necessary for commercial drivers in America to have a CDL driver's license?
answer: 1992