Reference guide for UK territories

Do you guys follow the map of United Kingdom, or is it just me, confused? For example, I thought Northern Ireland is part of Great Britain, but is not. Have a look..,at the maps below, and it doesn’t even include the maps of “commonwealth” and “countries report to queen” etc.

I can’t imagine confusion around territories hundred years back. “Dude… Is Goa in India is part of us or French took it? No ..!? Portuguese? Damn!”
The different names for the UK

image via Visual Loop