Argument: Agreement of 821 is signal of Tibet unification with China
- Debate: Tibet independence - con argument.
"China, Tibet and Chinese nation. Facts and Figures on Tibet in 1999". The Statistics Bureau of Tibet, 1999. - "The Tang-Tubo Alliance Monument erected in 823 still stands in the square in front of the Jokhang Monastery. The monument inscription reads in part, 'The two sovereigns, uncle and nephew, having come to agreement that their territories be united as one, have signed this alliance of great peace to last for eternity! May God and humanity bear witness thereto so that it may be praised from generation to generation.'"