Ship of Theseus

The Ship of Theseus is a replacement paradox also known as Theseus's paradox.

George Washington's axe

A similar story is told about George Washington's axe, with which the young George Washington is supposed, in an apocryphal story, to have cut down his father's cherry tree. The axe is supposedly on display in an (unverifiable) American museum, although, having had both its handle and its head replaced several times, no part of the original axe remains.

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