The first major milestone in the promotion campaign for the IAAF World Championships, Beijing 2015 took place today in the shadow of the Bird s Nest with a dramatic ‘one year to go ceremony, attended by the mayor of Beijing Wang Anshun, China s minister of sport administration bureau Liu Peng, IAAF President Lamine Diack and three of China s top athletes Liu Xiang, Zhang Peimeng and Wang Yu.