15:45A History of the World in 100 ObjectsThe Silk Road And Beyond (400 - 700 AD)Korean roof tileBBC Radio 4 Duration: 14 minutes Mon 31st Dec 2012, 15:45 on BBC Radio 4 ExtraAvailable for over a yearListen nowKorea: source of modern-day electronic components. Neil MacGregor delves into the history of a an artefact from the region.GenresFactualHistoryBrandA History of the World in 100 ObjectsSeriesA History of the World in 100 Objects: The Silk Road And Beyond (400 - 700 AD) Source: BBC Online