First, there is no widely known, legitimate historical text titled History of the World by an author named "Arjun Dev" that is legally available for free PDF download. It's possible this refers to:

Arjun Dev's "History of the World" is an invaluable resource for anyone interested in understanding the complexities of human history. The book provides a comprehensive and engaging account of the major events, trends, and cultural developments that have shaped the world we live in today. By studying world history, we can gain insights into the present, appreciate cultural diversity, and learn from the past. We hope that this article has provided a useful overview of the book and its contents, and we encourage readers to download the PDF version and explore the fascinating subject of world history.

Arjun Dev and Indira Arjun Dev provide a global narrative that shifts away from a purely Eurocentric perspective. Their work focuses on the "interconnectedness of events," showing how local movements often have global repercussions. Key Themes and Epochs