<Table> <Tr> <Td> </Td> <Td> The examples and perspective in this article deal primarily with North America and do not represent a worldwide view of the subject . You may improve this article, discuss the issue on the talk page, or create a new article, as appropriate . (July 2017) (Learn how and when to remove this template message) </Td> </Tr> </Table> <Tr> <Td> </Td> <Td> The examples and perspective in this article deal primarily with North America and do not represent a worldwide view of the subject . You may improve this article, discuss the issue on the talk page, or create a new article, as appropriate . (July 2017) (Learn how and when to remove this template message) </Td> </Tr> <P> An expiration date or expiry date is a previously determined date after which something should no longer be used, either by operation of law or by exceeding the anticipated shelf life for perishable goods . Expiration dates are applied to selected food products and to some other manufactured products like infant car seats where the age of the product may impact its safe use . </P>

When did they start putting expiration dates on canned food