Human bias is inevitable, but another source of bias in the representation of history has to do with the transitory nature of the materials themselves.

人类的偏见是在所难免的，但在历史的表现中，偏见的另一种来源与材料本身的短暂性有关。

youdao

youdao

Authority of sources: Clear statement of source for all information, including author's name, credentials, affiliations, and any relevant financial disclosure or potential conflict of interest bias.

来源的权威性：对于所有信息应有明确的来源说明，包括作者姓名、资质、单位以及任何相关的财务2信息的披露或潜在的利益冲突。

youdao

The three big rules of research, as they were taught to me in high school, are pay attention to source bias, never trust the Internet (especially Wikipedia), and remember that statistics can be misleading.

FORBES: Reading Charts

In addition, newspapers began to separate advertisements from the news, eliminating a source of bias (distortion).

CNN: Understanding The Role of the Media

Comparing winners and also-rans from within the same countries, to avoid yet another source of bias, Dr Rablen and Dr Oswald found that the winners lived, on average, two years longer than those who had merely been nominated.

ECONOMIST: Is two years extra life