00:25A Day That Shook The WorldEpisode 39: 17th March 1968: Grosvenor SquareBBC Two Duration: 5 minutes Fri 16th Aug 1996, 00:25 on BBC Two WalesThis look back at historical news events focuses on the anti-Vietnam demonstration in London's Grosvenor Square on 17 March 1968.GenresFactualHistoryBrandA Day That Shook The World Source: BBC Online