Which discipline necessitates resources that document private sources, humanity, and biographies?

The discipline that requires resources documenting private sources, humanity, and biographies is history. This field is inherently focused on understanding past events, societies, and cultures through the examination of various documents and narratives. Biographies are essential as they provide personal accounts and insights into individuals’ lives, reflecting broader historical themes and societal changes. Private sources, such as letters, diaries, and autobiographies, contribute to a more nuanced understanding of historical contexts by capturing personal experiences and perspectives that formal records might not convey. Hence, a history-oriented investigation often relies on these diverse resources to construct a comprehensive view of the past and its influential figures.