Ha Quan'an is an author writing in the field of world history. Publicly available information about him is limited, and no clear records of his birth year, place of origin, or educational background have been found. Judging from the two works held in the collection, A General History of Turkey (Revised Edition) and A General History of Iran, his focus is on the historical development of two important countries in the Middle East, placing his work within the genre of national general histories. Writing of this kind typically involves long-term issues such as dynastic change, religious evolution, social structure, and foreign relations, and places considerable demands on the organization of historical sources and narrative framework. Both works are titled "general histories," indicating that they are addressed to general readers seeking a systematic understanding of Turkish and Iranian history rather than to specialists in academic monographs; the appearance of a revised edition also suggests that the author adjusted and refined the original content. In the absence of further biographical information, what can be confirmed is that Ha Quan'an contributes to the introduction of Middle Eastern history in the Chinese-speaking world through national general histories, and that his works offer relatively complete framework narratives for related reading.
