<Tr> <Th> Founded </Th> <Td> September 18, 1837; 180 years ago (1837 - 09 - 18) </Td> </Tr> <Tr> <Th> Founder </Th> <Td> Charles Lewis Tiffany John B. Young </Td> </Tr> <Tr> <Th> Headquarters </Th> <Td> 727 Fifth Avenue, New York City New York, U.S. 10022 </Td> </Tr> <Tr> <Th> Area served </Th> <Td> Worldwide </Td> </Tr>

How many tiffany and co stores are in the us