A 1915 paper by Hitoshi Matsui asserted that a leader of these people’s self-enthronement began in the year of “Shence,” nine years after he consolidated his rule. A memorial for one of these people named Yanning was written using these people’s “large script.” These people’s former allies (15[1])through the Chanyuan Treaty later broke (15[1])ties with them by agreeing with a rival to invade these people’s land in the Alliance Conducted at Sea. These people founded the Dongdan Kingdom after conquering (*) Balhae. Dashi founded a “western” remnant of a dynasty led by these people, (10[1])which was sometimes known as the “Qara” [these people]. Abaoji founded that dynasty led by these people’s Yelü clan that eventually fell to the Jurchen Jin. The word “Cathay” comes from the name of these people. For 10 points, name these people who founded the Liao dynasty. ■END■