When did the construction of the 2012 Olympic Stadium begin?

Answer 1

Located in the Olympic Green, the US$423 million stadium is the world's largest steel structure. The design was awarded to a submission from the Swiss architecture firm Herzog & de Meuron in April 2003, after a bidding process that included 13 final submissions. The design, which originated from the study of Chinese ceramics, implemented steel beams in order to hide supports for the retractable roof; giving the stadium the appearance of a "Bird's nest". Ai Weiwei, the artistic consultant, played a critical role in pushing the design to have unique Chinese characteristics. Ironically, the retractable roof was later removed from the design after inspiring the stadium's most recognizable aspect. Ground was broken in December 2003 and the stadium officially opened in June 2008.

Answer 2

London has had a couple of Olympic Stadiums. One in 1908 and again in 1948. The current stadium has been under design and construction for the last 8 years since London learned they had won the bid for the 2012 Olympics.

Answer 3

It began in 2007. It took 5 years to build.

Answer 4

2007