Agelasta
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In Greek mythology, Agelasta (Template:Langx, Template:Langx, "smile-less") was the name of the stone on which Demeter rested during her search for Persephone.<ref>Template:Cite journal</ref>
In modern culture, Agelasta inspired the title of a documentary by Philippos Koutsaftis (Φίλιππος Κουτσαφτής), called Agelastos Petra (Αγέλαστος Πέτρα, "smile-less stone", 2000).