Oga (Gojoseon)
Encyclopedia
Ohga or Five Ministers was a political structure of Gojoseon
Gojoseon
Gojoseon was an ancient Korean kingdom. Go , meaning "ancient," distinguishes it from the later Joseon Dynasty; Joseon, as it is called in contemporaneous writings, is also romanized as Chosŏn....

 and Buyeo
Buyeo (state)
Buyeo or Puyŏ , Fuyu in Chinese, was an ancient Korean kingdom located from today's Manchuria to northern North Korea, from around the 2nd century BC to 494. Its remnants were absorbed by the neighboring and brotherhood kingdom of Goguryeo in 494...

. Literally, Ohga means five gas because "Oh" means five in Korean.

Ohga were composed of Dotga, Gaeda, Soga, Malga and Shinga. Dotga is a minister of east area, Gaega was a minister of west area, Soga was a minster of south area, Malga was a miniter of north area, and Shinga was the supreme minister among the Five Ministers. Shinga was responsibility of central area. These names of Ohga resembled the name of animals. Dot in Dotga means a pig, Gae in Gaeda means a dog, So in Soga means a cow, Mal in Malga means a horse. Shin in Shinga do not mean any animal, and it always represent Heaven because the Koreans considers themselves as the descendants of Heaven.
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