Complex sentence: In 767, Tonkin coast was hit by the Javanese raid, around modern day Hanoi the capital of Tonkin (Annam) was assaulted by Java (Daba) and Kunlun in 767.
Split into simpler sentences: In 767, Tonkin coast was hit by the Javanese raid. Around modern day Hanoi the capital of Tonkin (Annam) was assaulted by Java (Daba) and Kunlun in 767.