Misc: Which of the 48 contiguous states extends farthest north?

Questions

what kingdom has at one time or another owned norway, finland, the better part of the baltic states and land in modern day germany, poland and russia?

what modern day country used to be called bohemia/b?

what was the name for the japanese protectorate proclaimed in manchuria in 1933?

what year did finland become independant?

what is the proper name for japanese ritual suicide?