1. Historians divide history into large and small units to make characteristics and changes clear.
2. There are major geographical divisions in Asia, including Central and North Asia, West Asia, East Asia, South and Southeast Asia, and South Asia.
3. Cultural divisions include Buddhism, Islam, and the Silk Road.
The article is generally reliable and trustworthy as it provides a comprehensive overview of the different geographical and cultural divisions in Asian history. The article is well-researched with references to historical events such as campaigns of colonization by Western or Asian countries, the formation of Russia in the 17th century, the founding of Islam by Muhammad in the 7th century C.E., and the establishment of the Silk Road network in the 2nd century B.C.E.. The article also provides detailed explanations for each division which makes it easier for readers to understand them better.
However, there are some potential biases that should be noted when reading this article. Firstly, there is a lack of exploration into counterarguments or alternative perspectives on these divisions which could provide a more balanced view on their implications for Asian history. Secondly, while the article does mention some violent histories associated with certain regions (such as campaigns of colonization), it does not provide any further details or evidence to support these claims which could be beneficial for readers who want to learn more about them. Finally, while this article does provide an overview of different cultural phenomena such as Buddhism and Islam that have shaped various aspects central to Asian cultures over time, it does not explore how they have impacted other parts of the world outside of Asia which could be useful for readers who want to gain a broader understanding of their influence globally.