<Table> <Tr> <Th> Ruler </Th> <Th> Epithet </Th> <Th> Length of reign </Th> <Th> Approx . dates </Th> <Th> Comments </Th> </Tr> <Tr> <Td> Lugal - zage - si </Td> <Td> </Td> <Td> 25 years </Td> <Td> c. 2296--2271 BC (short) </Td> <Td> said to have defeated Urukagina of Lagash, as well as Kish and other Sumerian cities, creating a unified kingdom; he in turn was overthrown by Sargon of Akkad </Td> </Tr> <Tr> <Td_colspan="5"> <Dl> <Dd> "Then Unug was defeated and the kingship was taken to Agade (Akkad)" </Dd> </Dl> </Td> </Tr> </Table> <Tr> <Th> Ruler </Th> <Th> Epithet </Th> <Th> Length of reign </Th> <Th> Approx . dates </Th> <Th> Comments </Th> </Tr> <Tr> <Td> Lugal - zage - si </Td> <Td> </Td> <Td> 25 years </Td> <Td> c. 2296--2271 BC (short) </Td> <Td> said to have defeated Urukagina of Lagash, as well as Kish and other Sumerian cities, creating a unified kingdom; he in turn was overthrown by Sargon of Akkad </Td> </Tr> <Tr> <Td_colspan="5"> <Dl> <Dd> "Then Unug was defeated and the kingship was taken to Agade (Akkad)" </Dd> </Dl> </Td> </Tr>

Who were the first rulers of the world