Just catching up with this excellent work so apologies in advance for my ignorance: is it the case that the UK’s constituent countries have grown in size? Wales seems to have put on 4000 sq miles and England and Scotland also seem to have piled on the square mileage.
Author's Note: The flags of the Gold Coast and Uluguru were made by members of the discord server. Finally catching up with some work... I should be able to respond to questions here shortly!!