27 July – Jens Olsen, clockmaker, locksmith and astromechanic, constructor of the World Clock in Copenhagen City Hall (d. 1945)
In addition to the tower clock, the City Hall also houses Jens Olsen's World Clock.
World Cup | FIFA World Cup | World Trade Center | World Series | 2010 FIFA World Cup | World Bank | World Health Organization | Guinness World Records | 1978 FIFA World Cup | World Series of Poker | Allies of World War II | BBC World Service | ATP World Tour 250 series | World Heritage Site | World Boxing Association | World Boxing Council | 2006 FIFA World Cup | World Wide Web | As the World Turns | World Trade Organization | ATP World Tour 250 Series | World Rally Championship | World Intellectual Property Organization | World Economic Forum | Western world | Miss World | Rugby World Cup | World Meteorological Organization | World Championship | The Real World |