I feel like the overall description from 2003 better explains the concept than the current article:
> According to an ancient Greek legend, Theseus had a warship that was preserved as a historical relic by the Athenians. Some of its boards rotted and had to be replaced. After many, many years, many such replacements occurred. Eventually, none of the original boards were present. Philosophers could then debate whether it was the same ship that Theseus had used, and if not, when it had ceased to be so.
versus the current version:
> The Ship of Theseus is a thought experiment about whether an object which has had all of its original components replaced remains the same object. In Greek mythology, Theseus, the mythical Greek founder-king of Athens, rescued the children of Athens from King Minos after slaying the minotaur and then escaped onto a ship going to Delos. Each year, the Athenians commemorated this by taking the ship on a pilgrimage to Delos to honor Apollo. A question was raised by ancient philosophers: After several centuries of maintenance, if each individual part of the Ship of Theseus was replaced, one at a time, was it still the same ship?