Using common knowledge

 

Common knowledge is information or facts that are commonly known.

 

Types of common knowledge include:

 

In general, widely or commonly known dates, facts or ideas are regarded as common knowledge and do not require referencing.

 

As a rule, ideas, facts, and conclusions that have come from specific investigations and studies, should always include a reference of the source.

 

If you are unsure about whether something is regarded as common knowledge, it is best to reference that source.