<Tr> <Td> Technology timelines (show) <Ul> <Li> Timeline of historic inventions </Li> <Li> Complete list by category </Li> </Ul> </Td> </Tr> <Ul> <Li> Timeline of historic inventions </Li> <Li> Complete list by category </Li> </Ul> <Li> Timeline of historic inventions </Li> <Li> Complete list by category </Li>

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