The museum was opened on May 5, 1973 in a 4-story building constructed with steel concretes. The building was expanded in May 1977 into a 5-story building with total floor area of 1,500 pyeong. Name of the university was changed to Sejong University in 1979, and accordingly, the name of the museum has been changed to ¡®Sejong University Museum'. Various kinds of folk stuff, wooden craft, traditional clothes, ornaments, pottery, paintings and writings which have been collected by the founder are displayed in the museum. Among them, 16 folklore materials are especially noteworthy. Details of several important folklore materials are as follows.

goebul, an embroidered pouch, is an ornament worn by women or children on their outfits.

A piece of rectangular silk is folded and quilted with cotton. The edges are embroidered and beautifully decorated. A silk cord hangs down. It is worn by knotting this silk thread on the outfit. Because gold, silver or other jewels were not available to the commons, pieces of silk were embroidered in various ways and worn as ornaments.

A Queen put on this Wonsam on a national ceremony or wedding day. Wonsam is the formal dress that was put on by an empress, a queen and a royal concubine. It was made of gold Gumjikdan, lined with red cloth and edged with deep blue line.

This is a Wonsam of Gwanghwadang, a royal concubine of King Gojong (the period of reign 1863~ 1907). Wonsam is a formal dress of a Queen or a royal concubine

Wonsam is the formal dress that was put on by an empress and a queen and a royal concubine. This is a full dress of the Crown Princess of the late Joseon. It has a 145 cm length, a 135 cm length of sleeve and a 68 cm width of sleeve

Dangeui is the formal dress that the women of the Royal Court and the high government official's family put on over the jeogori (a Korean-style jacket). It is similar to jeogori but its front and back is longer and opened from the armpit.