In 1991, in newly free Estonia, those inhabitants (mainly Russians) who were there as a result of the Soviet occupation could claim citizenship only if they passed a language test.

• 1991年，在新独立的爱沙尼亚，因为苏联占领而生活在那里的居民（主要是俄罗斯人）只有通过语言考试才能获得公民身份。