Picture This
Members of the academy of Sciences in Paris learn in January 1839 of Louis Jacques Mandé Daguerre's pioneering photographic process. It's the first method to achieve widespread succes dagueree's light-sensitive copper sheets reduce exposure time from hours to minutes - and before it is supplemented in the 1850s, millions of daguerreotypes are taken annualy. Daguerre dies , at 63, in 1851.