Why is White Russia called White Russia?

Related questions

1. Is Belarus allied with Russia?
2. What does Tia Maria taste like?
3. What is the difference between a Black Russian and a White Russian?
4. How many times does the Big Lebowski drink a White Russian?
5. What does the Dude smoke in The Big Lebowski?
6. Did Minsk used to be in Russia?
7. How many times does the Dude say the Dude abides?
8. How many times do they say Man In The Big Lebowski?
9. Is there caffeine in Kahlua?
10. Why is it called a Black Russian?

Tags

1. #russia
2. #white
3. #lands
4. #suggests
5. #often
6. #referred
7. #conflated
8. #latin
9. #ruthenia
10. #theory
11. #third
12. #mogilev
13. #polotsk
14. #forms
15. #vitebsk
16. #tatars
17. #belarus
18. #conquered