The Many Genres of History in the ~First Century

Awhile back, I came across a passage in Theon's Exercises in which he lists the different sub-genres of historical writing. Here are the sub-genres that he lists:

1. Genealogical history
2. Political history
3. Mythical history
4. Biographical 
5. General history
6. Descriptions of constitutions
7. Advanced histories which combine features of the above genre1

This list is interesting as it shows the diversity of historical genres in the ~first century. 

1. Kennedy, George, Progymnasmata: Greek Textbooks of Prose Composition and Rhetoric (Atlanta: Society of Biblical Literature, 2003), p. 68.