Pioneering photographer Julia Margaret Cameron (left) has been celebrated with a blue plaque (right) in London, U.K. Julia Margaret Cameron — one of the most significant photographers of Victorian Britain who helped transform photography into a serious artistic medium — has been honored with a blue plaque at her former home in London. The U.K.’s famous blue plaques connect notable figures from the past with buildings that still stand today. The scheme, now run by the charity English Heritage, began in 1866 and is believed to be the oldest program of its kind in the world. The permanent blue circular plaques are installed on buildings associated with important historical figures across the U.K. According to a report by The Art Newspaper , English Heritage announced that a blue plaque has been unveiled at the London home of Julia Margaret Cameron in recognition of her life and work.…