It was written by Yuan Hong (328–376) during the Jin dynasty (266–420).
Yuan spent eight years to complete his Annals.
The annals contain 30 books with some 210 thousand Chinese characters.
The annals were written 50 years earlier than Fan Ye's Book of the Later Han, and it is one of two surviving history books of Eastern Han dynasty.
This article about a non-fiction book on Chinese history is a stub.