The written history began when European navigators first sighted New Guinea in the early part of the 16th century.ollowing the passage of the Papua Act in 1905, British New Guinea became the Territory of Papua, and formal Australian administration began in 1906, although Papua remained under their control a British possession until the independence of Papua New Guinea in 1975. There was little economic activity in Papua.
Floor hole. An opening measuring less than 12 inches but more than 1 inch in its least dimension, in any floor, platform, pavement, or yard, through which materials but not persons may fall; such as a belt hole, pipe opening, or slot opening.
Sinkholes: When the Earth Opens Up. The ground beneath our feet, our cars, our buildings, appears to be incredibly solid. But, rarely, that solid ground can simply open up without warning, dropping whatever was above into an unpredictably deep.hole. Sinkholes can be anywhere from a few feet wide and deep, to two thousand feet in diameter and depth. An undiscovered cavern or deep mine can collapse, allowing the ground above to crater, or a broken water main or heavy storm can erode a hole from below, until the surface becomes a thin shell that collapses at once.