Today we take for granted the fact that we are able to flip a switch and clear our windshields of precipitation or debris, but this was not always the case. Early drivers were forced to manually clear their windshields of snow, rain, dirt, and the like, that is, until Mary Anderson invented the first effective windshield wiper system. It was not long before windshield wipers were standard equipment on American cars. What inspired Anderson to invent a windshield-clearing device? Discuss
Source: The Free Dictionary