The history of humanity - as told through one hundred objects from the British Museum in London - is once again in Japan. This week Neil MacGregor, the museum's director, is looking at the global economy in the 19th century - at mass production and mass consumption. Today he is with an image that rapidly made its way around the world - Hokusai's print, The Great Wave, the now familiar seascape with a snow topped Mount Fuji in the background that became emblematic of the newly emerging Japan. Neil explores the conditions that produced this famous image - with help from Japan watchers Donald Keene and Christine Guth. Producer: Anthony Denselow.