 The Motuan people of the area now known as Port Moresby traded their pots for sago, other food and canoe logs, sailing from Hanuabada and other villages built on stilts above the waters of the bay.Their language, Motu, was the basis of Hiri Motu, an official language of Papua New Guinea.It has been steadily in decline since the 1960s when Tok Pisin (till then confined to the northern side of the former border between Papua, British New Guinea until 1905, and New Guinea, which was German New Guinea until 1914) began to grow in popularity.