An ancient kingdom ruled by this ethnicity was called the “Land of the Tattooed Men,” named for signs of aristocracy since the Đông Sơn culture. A rebellion of this ethnicity revived the Nányuè Kingdom (10[1])after storming 65 citadels. A kingdom of this ethnicity used massive wooden stakes to entrap Kublai Khan’s fleet (10[1])during a (10[1])1288 invasion. In 42 CE, Mǎ (-5[1])Yuǎn led Hán armies against elephant-riding (10[1])tribes of this ethnicity in the Red River Delta led by the Trưng Sisters. Lê Lợi (“leh loy”) was a leader of this ethnicity, a state of which preceded by the name “Dai” was succeeded by the Nguyen (“win”) dynasty. For 10 points, name this ethnicity whose Ly Dynasty built Hanoi. (10[1])■END■