the.com/artefact

The thing that proves someone was here before you ruined it.

means An object made or shaped by human hands, especially one old enough or significant enough to tell us something about the people who made it.

from From Latin arte (by skill, the ablative of ars) plus factum (a thing made, from facere, to do or make). So, quite literally, 'something made by skill' — a word that walked unchanged out of Latin workshops into museum display cases.

spelling split
artefact UK, artifact US, both correct, both smug
archaeology use
any object made or altered by humans
science use
a false signal mistaken for a real result
etymology
from Latin arte factum, made with skill
the.com · every word