Pulau Ujong otherwise called Singapore Island or Mainland Singapore, is the primary constituent island of Singapore. It is a piece of the Malay Archipelago and is situated at the tip of Peninsular Malaysia. The island frames most of the nation as far as zone and populace as natives can't live in littler islands of Singapore. With a populace of 5,469,700 and a zone of 710 square kilometers, Pulau Ujong is the 21st most crowded island on the planet and the 31st most thickly populated island on the planet. Pulau Ujong was the most punctual reference to Singapore Island. The third century Chinese reference to Po Lo Chung relates to the Malay reference known as Pulau Ujong. Explorers from the Straits of Malacca toward the South China Sea would need to go through the island, thus the name Pulau Ujong. Like Johor's old name, Ujong Tanah signifying "Land's End", the island was referred to better by the Orang laut as Pulau Ujong truly signifying "End Island". Ujong Tanah or its variations were likewise utilized as a part of European sources as a name for Singapore. As indicated by a third-century book Record of Foreign nations amid the Eastern Wu Period , Pu Luo Jong was possessed by savages with five to six inch tails. The island measures 50 kilometers (31 mi) from east to west and 26 kilometers (16 mi) from north to south with 193 kilometers (120 mi) of coastline. The most astounding purpose of Singapore is Bukit Timah Hill, with a stature of 165 m (538 ft) and made up of volcanic shake, stone. Slopes and valleys of sedimentary shake overwhelm the northwest, while the eastern area comprises of sandy and compliment arrive. Since 1822, there were land recovery works by British, who around then controlled the island and the legislature of Singapore has kept on expanding the span of the island after freedom, which expanded the zone of the island from 580 km2 (224 sq mi) in the 1960s to 710 km2 (274 sq mi) today.