Kuching, officially the City of Kuching, and formerly the City of Sarawak, is the capital and most populous city of the East Malaysian state of Sarawak. It is the largest city on the island of Borneo, and the fourth largest city in Malaysia. Kuching is one of the two subsets of the Kuching Proper subdistrict, the other subset being part of the Padawan municipality. Kuching Proper is one of the three subdistricts in the Kuching District, which is one of the three districts in the Kuching Division. Kuching was named after a tidal stream called Kuching River (Sungai Kuching) that ran between the present-day Tua Pek Kong Temple, and Chinese History Museum. The stream originated from Cat's Eye Hill (Bukit Mata Kuching) where there was an abundance of a local fruit called Green Longan (Isau, Dimocarpus longan ssp malesianus), vernacularly known as Cat's Eye (Mata Kuching). In 1928, the stream was filled up to make way for the construction of Temple Street (Lebuh Temple), and thus the city's expansion eastwards.