Fact

A Fact can be one of the following:

Generally, a fact is evidence that exists or has existed.
Something which is true in reality. There are various types of facts, such as proverbial facts.
In science, a fact is data proven by a scientific experiment. It's a valid piece of data from an experiment.
In law, a fact is a statement which is found to be true by a "tryer of fact," sometimes a jury, but often the court (the judge or judges) after hearing evidence. Fact is to be contrasted with law. The jury is the finder of fact; the judge is the determiner of law. appellate courts generally only consider only possible errors of law and only very rarely overturn errors of fact.

Depending on the nature of the matter the standard of proof may require that a fact be proved to be "more likely than not", that is there is barely more evidence for the fact than against; established by a preponderance of the evidence; or true beyond a reasonable doubt.

Facts which aren't can be found on Misconceptions and disputed facts

See also