ɪn nˈaɪntiːnhˈʌndɹɪd nˈaɪntiːn, ðə sˈoʊviət ɡˈʌvɚnmənt fˈɔːɹməli pˌʊt jˈæsneɪə pˌɑːlɪˈɑːnə ˌʌndɚ ðə pɹətˈɛkʃən ʌvðə stˈeɪt, ænd ɪn dʒˈuːn nˈaɪntiːnhˈʌndɹɪd twˈɛnti wˈʌn jˈæsneɪə pˌɑːlɪˈɑːnə wʌz nˈæʃənəlˌaɪzd ænd bɪkˌeɪm ɐ stˈeɪt mjuːzˈiəm, ɹᵻsˈiːvɪŋ θɹˈiː,wˈʌnhˈʌndɹɪd fˈoːɹɾi sˈɛvən vˈɪzɪɾɚz ɪn ɪts fˈɜːst jˈɪɹ.
In 1919, the Soviet Government formally put Yasnaya Polyana under the protection of the state, and in June 1921 Yasnaya Polyana was nationalized and became a state museum, receiving 3,147 visitors in its first year.