The research which explores new facts through the study of the past is called

Historical research explores new facts through the systematic study of the past.

Philosophical research analyses concepts, values, and speculative questions rather than past events.

Mythological research deals with myths and legends, not with verified historical fact.

Content analysis is a technique for coding communication content, not a study of the past as such.

Historical research relies on primary sources such as documents, records, and relics.

It applies internal and external criticism to judge the authenticity of its sources.