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Line 318: * January 2004: Excavation commences.<ref name="timeline">{{cite web\|url=http://www.burjdubai.com/the-tower/construction.aspx \|title=Burj Dubai Construction Timeline \|publisher=BurjDubai.com \|accessdate=31 December 2009 \|deadurl=yes \|archiveurl=https://web.archive.org/20091215060325/http://www.burjdubai.com:80/the-tower/construction.aspx \|archivedate=15 December 2009 }}</ref> * February 2004: Piling starts.<ref name="timeline" /> * 21 September 2004: Emaar contractors begin construction.<ref>{{cite news\|url=http://~~surpriselists~~news.~~com~~bbc.co.uk/~~10-tallest-buildings-that-everyone-must-see-when-enjoying-world-tour~~2/hi/middle_east/6910536.stm\|title=Dubai skyscraper world's tallest\|date=22 July 2007\|publisher=BBC News \|accessdate=31 December 2009}}</ref> * March 2005: Structure of Burj Khalifa starts rising.<ref name="timeline" /> * June 2006: Level 50 is reached.<ref name="timeline" />

Burj Khalifa: Difference between revisions