Research and discover
1)
It is many immigrants in Norway. 15,6% of the population or people in Norway are immigrants. So there are around 805 thousands people with another culture then the Norwegian. Immigrants have always happened in Norway. We can say it's three different types of immigrants. Professionals that comes to Norway to do business, immigrants who comes to get work. And the last group is refugees who need helps.
2)
It is many more immigrants in Britain compared to Norway. It is many more groups represented in Britain. We find immigrants mostly in London and the big northern cities.The immigrants are from Asia, the Caribbean and Africa. The immigrant groups is very big in Britain, it came around 117 thousands  immigrants in 2014, and in Norway came around 47 thousands. It is coming many people from Asia, the Caribbean and Africa to Britain, and in Norway it comes mostly people from south-Europe like people from Turkey, Pakistan, Syria and Yugoslavia. The groups that immigrate today to Norway and Britain is many from Syria, because the country is in war, and people want to move to a land with peace.