At 10 o 'clock on the morning of September 1st, the launching ceremony of the 90th anniversary celebration of tianxin pavilion, the symbol of the ancient city of changsha, sponsored by changsha landscape management bureau and organized by tianxin pavilion management office was held grandly in front of chonglie gate of tianxin pavilion.The event kicked off with a show of ancient Chinese costume. Professor Chen Xianshu, an expert in literature and history from Hunan Province, gave a lecture in Tianxin Pavilion, telling the history and culture of Tianxin Pavilion and letting the audience feel the strong historical and cultural feelings of Tianxin Pavilion.