गिबि वर्ल्ड डाउन सिन्ड्र'म सानआ 21 मार्च 2006 खालि खुंजादोंमोन आरो सान आरो दानखौ फारियै 21 आरो ट्राइस'मीजों गोरोबहोना सायख'नाय जादोंमोन।
The first World Down Syndrome Day was held on 21 March 2006 and the day and month were chosen to correspond with 21 and trisomy, respectively.