<Table> Rod numerals (vertical) <Tr> <Th> 0 </Th> <Th> </Th> <Th> </Th> <Th> </Th> <Th> </Th> <Th> 5 </Th> <Th> 6 </Th> <Th> 7 </Th> <Th> 8 </Th> <Th> 9 </Th> </Tr> <Tr> <Td> </Td> <Td> </Td> <Td> </Td> <Td> </Td> <Td> </Td> <Td> </Td> <Td> </Td> <Td> </Td> <Td> </Td> <Td> </Td> </Tr> <Tr> <Th>--0 </Th> <Th>--1 </Th> <Th>--2 </Th> <Th>--3 </Th> <Th>--4 </Th> <Th>--5 </Th> <Th>--6 </Th> <Th>--7 </Th> <Th>--8 </Th> <Th>--9 </Th> </Tr> <Tr> <Td> </Td> <Td> </Td> <Td> </Td> <Td> </Td> <Td> </Td> <Td> </Td> <Td> </Td> <Td> </Td> <Td> </Td> <Td> </Td> </Tr> </Table> <Tr> <Th> 0 </Th> <Th> </Th> <Th> </Th> <Th> </Th> <Th> </Th> <Th> 5 </Th> <Th> 6 </Th> <Th> 7 </Th> <Th> 8 </Th> <Th> 9 </Th> </Tr> <Tr> <Td> </Td> <Td> </Td> <Td> </Td> <Td> </Td> <Td> </Td> <Td> </Td> <Td> </Td> <Td> </Td> <Td> </Td> <Td> </Td> </Tr> <Tr> <Th>--0 </Th> <Th>--1 </Th> <Th>--2 </Th> <Th>--3 </Th> <Th>--4 </Th> <Th>--5 </Th> <Th>--6 </Th> <Th>--7 </Th> <Th>--8 </Th> <Th>--9 </Th> </Tr>

Where did our digits for numbers come from