'fact-sharing' originates from the combination of 'fact' and 'sharing', where 'fact' means 'a thing that is known or proved to be true' and 'sharing' means 'to have a portion of (something) with another or others'.

'fact' and 'sharing' have been used in English since the Middle Ages, but the compound 'fact-sharing' is a modern term that emerged with the rise of digital communication.

Initially, 'fact' and 'sharing' were used separately, but the compound term 'fact-sharing' evolved to specifically denote the exchange of factual information.