 The UNESCO Convention for the Safeguarding of the Intangible Cultural Heritage took place in 2003 and South Korea joined the program a year later . In 2005 China declared some 1200 properties as intangible cultural heritage , with 16 items belonging to the Korean minority of the country , including the traditional wedding ceremony , Arirang ( a folk song ) and nolttwigi ( a traditional seesaw game ) . The CHA decided that they also had to broaden the scope of intangible heritage to properties that do not have any designated ' holders ' , like kimchi , hangul or Goryeo ginseng . 
