fact
noun
[ fakt ]
• a thing that is known or proved to be true.
• "he ignores some historical and economic facts"
Origin:
late 15th century: from Latin factum, neuter past participle of facere ‘do’. The original sense was ‘an act’, later ‘a crime’, surviving in the phrase before (or after) the fact . The earliest of the current senses (‘truth, reality’) dates from the late 16th century.