Historical pictures of China you've never seen before

The world’s first photographs, black-and-white images that took about eight hours to develop, were produced in France in 1826 or 1827. In the decades that followed, photographers around the world experimented with colour, perspective and presentation, displaying photos using “magic lanterns” and other early slide projectors. Mass-produced postcards became popular around the world in the late 1800s and early 1900s. These photographs allow for a memorable trip to early 20th-century China.