<Tr> <Th> Place of origin </Th> <Td> Several European countries </Td> </Tr> <Tr> <Td_colspan="2"> <Ul> <Li> Cookbook: Birthday cake </Li> <Li> Media: Birthday cake </Li> </Ul> </Td> </Tr> <Ul> <Li> Cookbook: Birthday cake </Li> <Li> Media: Birthday cake </Li> </Ul> <Li> Cookbook: Birthday cake </Li>

Where does blowing out birthday candles come from