🇬🇧The Union Jack is three flags in one: the upright cross of St George (England), the white diagonal cross of St Andrew (Scotland) and the red diagonal cross of St Patrick (Ireland).
🏴Wales isn't in the flag — when the first Union flag was created in 1606, Wales was already joined with England, so it was never given its own cross.
🔍The flag is not symmetrical. Look at the side nearest the flagpole and you'll see the wide white stripe sits above the red one — flying it the other way up is considered wrong.
🌏Look for the Union Jack in the corner of other flags too — Australia, New Zealand, Fiji and Tuvalu all include it.