Geez, they should have. For a small island people they achieved an amazing progress of ideas worldwide, even though they obviously got a lot of things wrong. Look at the Industrial Revolution and the development of parliamentary government. There are a lot of proud milestones in their history that they.could hang a national day on - Magna Carta, the 1688 constitutional settlement following the defeat of King James, their part in the defeat of Hitler wher e for 2 long years they stood alonet before the Americans found the balls to get involved. Lots of occasions to choose from. As do we and I nominate the day - don't know what it was - when the the state colonies agreed & signed up for federation into one country, even though it doesn't quite look like that now.