Tonga ([ˈtoŋa]; Tongan: Puleʻanga Fakatuʻi ʻo Tonga), officially the Kingdom of Tonga, is a sovereign state and an archipelago comprising 176 islands scattered over 700,000 square kilometres (270,000 sq mi) of the southern Pacific Ocean. Fifty-two of these islands are inhabited.

More information on the Wikipedia page [1].

The National Archives' page on government gazettes relating to Tonga (to 1992) is [2]: there are other files available; other national archives also have material on Tonga.

See also [3].