Core Viewpoint - The National Grand Theatre's original play "Jin Zhong Du" is set to showcase the historical evolution of Beijing from a northern stronghold to a capital city, with performances scheduled from December 13 to 22 [1] Group 1 - The play "Jin Zhong Du" is part of the National Grand Theatre's "Beijing Capital Trilogy," which will also include "Yuan Da Du" and "Forbidden City" [1] - The historical exhibition at the Jin Zhong Du Park highlights the period from 1153, when Jin Zhong Du was established, to 1215, when it fell [1] - The media preview event featured historical consultant Li Jianping, who provided insights into the play's historical context [1]