In a modern supermarket, all produce is available year round, fresh and ready to eat. Nor is there any real doubt that food will always be there. If you don't have food, the feeling goes, it is because someone is denying you your rights.
In a society in which people are closely dependent on the local harvest, there was real and immediate reason to be thankful once the harvest was safely gathered and stored. Plenty was worth celebrating and being truly grateful for, because there was the ever present possibility that a bad harvest would result in widespread hunger.
Read the rest here.