http://www.w3.org/ns/prov#value | - But it has been avoided.[8][9] The world's oldest known dildo is a siltstone 20-centimeter phallus from the Upper Palaeolithic period 30,000 years ago that was found in Hohle Fels Cave near Ulm, Germany.[10] The first dildos were made of stone, tar, wood and other materials that could be shaped as penises and that were firm enough to be used as penetrative sex toys.
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