3/ Scotland 🏴 and England 🏴 united in 1707.
The relationship between the "constituent countries" of the UK 🇬🇧 has evolved over time.
Fans of obscure political/geographic crossover references may recall the "West Lothian question" https://en.wikipedia.org/wiki/West_Lothian_question
in 1999 Scottish Parliament was (re)established. The popular Scottish National Party advocates for independence from the UK, and this culminated in the 2014 independence referendum, with "No" winning 55.3% to 44.7%
https://en.wikipedia.org/wiki/2014_Scottish_independence_referendum
4/ You may not have recognised the map of Scotland 🏴 in the toot that started this thread.
Traditionally many/most maps of Scotland or the entire UK 🇬🇧 have Shetland - the northernmost islands - in a box to save space.
In 2018 a law was introduced to ban "putting Shetland in a box", in an effort to combat "misconceptions about our islands"
https://www.bbc.com/news/uk-scotland-43574298
#geoweirdness