 The Declaration of the Constitution of Tonga in 1875 formalised Nukuʻalofa as the Capital of Tonga.King George Taufaʻahau Tupou I issued the Constitution of Tonga on 4 November 1875, in Nukuʻalofa.The Constitution also stated (Article 38) that the Parliament will meet in Nukuʻalofa except in time of war.