<Table> <Tr> <Th_colspan="2"> Decebalus </Th> </Tr> <Tr> <Td_colspan="2"> King of Dacia </Td> </Tr> <Tr> <Td_colspan="2"> Decebalus, as depicted in Cartea omului matur (1919) </Td> </Tr> <Tr> <Th> Reign </Th> <Td> 87--106 AD </Td> </Tr> <Tr> <Th> Predecessor </Th> <Td> Duras </Td> </Tr> <Tr> <Th> </Th> <Td> 106 AD </Td> </Tr> <Tr> <Th> Father </Th> <Td> Scorilo (purported) </Td> </Tr> </Table> <Tr> <Th_colspan="2"> Decebalus </Th> </Tr> <Tr> <Td_colspan="2"> King of Dacia </Td> </Tr>

When did the romans discover the head of an unidentified man