<Tr> <Td> <Ul> <Li> </Li> <Li> </Li> <Li> </Li> </Ul> </Td> </Tr> <Ul> <Li> </Li> <Li> </Li> <Li> </Li> </Ul> <P> The Territory of Papua and New Guinea was established by an administrative union between the Australian - administered territories of Papua and New Guinea in 1949 . In 1972, the name of the Territory changed to "Papua New Guinea" and in 1975 it became the Independent State of Papua New Guinea . </P> <P> Archeological evidence suggests that humans arrived on New Guinea around 50,000 years ago . These Melanesian people developed stone tools and agriculture . Portuguese and Spanish navigators sailing in the South Pacific entered New Guinea waters in the early part of the 16th century and in 1526--27, Jorge de Menezes came upon the principal island "Papua". In 1545, the Spaniard Iñigo Ortiz de Retes gave the island the name "New Guinea" because of what he saw as a resemblance between the islands' inhabitants and those found on the African Guinea coast . Knowledge of the interior of the island remained scant for several centuries after these initial European encounters . </P>

When was papua new guinea part of australia
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