Loiyumpa Silyel
The Loiyumpa Silyel (Modern Meitei: "Loiyumba Sinyen"), also termed as the Loyumpa Silyel (Modern Meitei: "Loyumba Sinyen") or the Loiyumpa Shilyel (Modern Meitei: "Loiyumba Shinyen") or the Loyumpa Shilyel (Modern Meitei: "Loyumba Shinyen") or the Loyumba Sinyen (Old Manipuri: Loyampa Sinyen), is an 11th-12th century ancient Meitei language written constitution, regulated in the Ancient Kangleipak (early Manipur) during the rule of King Loiyumba (1074-1122 CE). In 1110 CE, its format was finalised from a promulgation of the proto-constitution, drafted in 429 CE by King Naophangba.