The following is a canon of historical resources (often cited as though they were completely historically accurate) which may well be open to a considerable degree of question and must be used with the greatest of care:

The following could be included on the list, but is rather more of a humorous book than a historical resource, containing deliberately mangled history. Also in citing historical resources keep in mind that what may generally regarded as truth by one generation of historians, may become extremely controversial by the next generation, who may not only have more complete facts, but may also be looking at the situation with a different set of historical biases. Case in point, lots of things that have been written about the History of China, in particular the post-Song "decline", anything about Zheng He, the 1911 revolution, the interaction between China and Europe in the 19th century, the interaction between China and Europe before the 19th century.

See historical revisionism for more discussion of the revision of historical opinion.

See also: Pseudohistory.