Gojoseon (Korean pronunciation: [kodʑosʌn]) is said to have been an ancient Korean kingdom. The addition of Go (고, 古), meaning "ancient," distinguishes it from the Joseon Dynasty; Joseon, is also romanized as Chosŏn.

The first mentioning of this name however not appears until the Samguk Yusa and other medieval-era records, Gojoseon is said to have been founded in 2333 BC by Dangun in the legend, who is said to be a Posterity of Heaven.

Archaeological evidence of a Gojoseon-era civilization is found in the transition from the Jeulmun pottery to the Mumun pottery around 1500 BC, when groups of semi-sedentary small-scale agriculturalists occupied most of the Korean Peninsula. Local bronze production began around the 8th century BC. Based on Chinese records^{[citation needed]}, some modern historians believe it developed from a loose federation into a kingdom between the 8th and 4th centuries BC, although this theory is contested.

During its early phase, the capital of Gojoseon supposedly was located in Liaoning; around 400 BC, and was moved to Pyongyang, while in the south of the peninsula, the Jin state arose by the 3rd century BC.

First State is a project of Sander van Dien and Shane Halcon. First State has released numerous singles, remixes and albums and compilations, most of which gained recognition within the world wide Trance scene. Ralphie B, left the group in 2009 and Shane Halcon joined soon after.

In 2010, the record label First State Music was announced together with First State Deep and First State House. Three new partner labels of Black Hole Recordings. First State Music is owned and managed by Sander van Dien and Shane Halcon.

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