Electric light be made with a screw-thread base, two metal pins, two metal caps or a bayonet cap. The three main categories of electric lights are incandescent lamps, which produce light by a filament heated white-hot by electric current, gas-discharge lamps, which produce light by means of an electric arc through a gas, and LED lamps, which produce light by a flow of electrons across a band gap in a semiconductor. Before electric lighting became common in the early 20th century, people used candles, gas lights, oil lamps, and fires. Cornish chemist Humphry Davy developed the first incandescent light in 1802, followed
Malaysian Branch of the Royal Asiatic Society society was supported by grants from the government and donations from the Sultans of the Malay States and also benefitted from various privileges, such as government-provided premises and printing facilities. In 1923 the society's name was changed to recognise political changes to the Malayan Branch of the Royal Asiatic Society and in 1954, when the Society was also relocated to Kuala Lumpur, to its current name. The journal was produced from the very early days of the society, initially as the "Journal of the Straits Branch of the Royal Asiatic Society" and currently as the "Journal of the Malaysian Branch