1. A topic or matter that has been thoroughly recorded, researched, or written about with substantial evidence and references
The history of the Roman Empire is a well-documented subject with thousands of primary sources.
A história do Império Romano é um assunto bem documentado com milhares de fontes primárias.
2. A subject that has comprehensive, reliable, and accessible information available from credible sources
Climate change is a well-documented subject in scientific literature.
A mudança climática é um assunto bem documentado na literatura científica.