Development Timeline By Devan Kula Period: Jan 1, 1000 to Jan 1, 2014 Development Time Line May 1, 1000 First Gardens First Gardens in the Mt Hagen May 20, 1035 First Traders First Traders to come to Papua New Guinea Jan 1, 1764 White Comes White Man come to Papua New Guinea Jan 22, 1942 World War ii World War ii begins in New Guinea Sep 16, 1975 Independence Papua New Guinea becomes an independent state