Why did Herder divide history into ages of poetry, prose and philosophy?

Herder's division of history into poetry era, prose era and philosophy era may be based on his unique view of literature and history. As a literary critic and historian, held may think that the development of history can be described and explained in the form of literature.

The era of poetry may mean that in the early days of history, people used poems or epics to record and praise heroes, so as to inherit history. These poems may appear in the form of rhythm, with strong emotional color and appeal, which can make people feel the massiness and greatness of history in singing.

The age of prose may be in human history. When there is a real historical record, writers or historians like Plato, Thoreau and Rousseau began to record and comment on history in the form of prose. This form may be more objective and accurate, and prose may be more able to truly restore historical events and people than poetry.

As for the philosophical era, it may mean that in the process of historical development, philosophers began to examine and explain history from a philosophical perspective. Philosophers such as Marx and Nietzsche, their views and theories may have a far-reaching impact on the development of history and promoted the progress and development of society.

The above is just speculation. It is recommended to read relevant books to get more useful information.