ɪn wˈʌn θˈaʊzənd ˈeɪthˈʌndɹɪd fˈoːɹɾi θɹˈiː, təɡˌɛðɚ wɪð ˈaɪɑːn ɡˈiːkə ænd nˈɪkəlˌiː bˈælsɪskˌuː, hiː ɪstˈæblɪʃt ðə faʊndˈeɪʃənz ʌvðə bˌuːkɚɹˈɛst sˈiːkɹᵻt bɹˈʌðɚhˌʊd səsˈaɪəɾi wˌɪtʃ wʌzðɪ ˈɛndʒɪn ʌvðə ɹˌɛvəlˈuːʃən fɹʌm wˈʌn θˈaʊzənd ˈeɪthˈʌndɹɪd fˈoːɹɾi ˈeɪt.
In 1843, together with Ion Ghica and Nicolae Bălcescu, he established the foundations of the Bucharest secret Brotherhood society - which was the engine of the revolution from 1848.