The history of Western philosophy is the history of European philosophy, from the ancient Greek and Roman philosophy in the 6th century BC to the development history of modern Western philosophy. It can be divided into 4 periods:

① From the 6th century BC to the 5th century AD, it is called ancient Greek and Roman philosophy;

② From the 5th century AD to the 15th century, it is called medieval philosophy;

③The period from the mid-15th century to the 1840s is called modern philosophy;

④Since the 1840s, it is called modern philosophy.

Academics have different views on the division of modern philosophical periods. Some place the upper limit at the end of the 19th century, some after the First World War and the Russian October Revolution, and some at the end of the 19th century. After World War II.