Complex sentence: Lộc Tục (2919--2794 BC) succeeded his predecessor as tribal chief and made the first attempts to incorporate all tribes around 2879 BC. A convocation of the subjugated tribes proclaimed him Kinh Dương Vương, leader of the united ancient Vietnamese tribes.
Split into simpler sentences: Lộc Tục (2919--2794 BC) succeeded his predecessor as tribal chief. In that year, a convocation of the subjugated tribes proclaimed him Kinh Dương Vương, leader of the united ancient Vietnamese tribes.