Found in articles
history of the Meiteis of Manipur - The Manipur Page. [2015-01-18]. （原始内容存档于2010-01-31）. FOTW - Manipur, Indian Princely State Paphal: the mythical assumptions
各國建國時間列表
independent and sovereign state Agreement relating to the separation of Singapore from Malaysia as an independent and sovereign state/proclamation of singapore