ɪn nˈaɪntiːnhˈʌndɹɪd θˈɜːɾi wˈʌn, ɹˈɪɡaʊ kˈæɹɚɹə wʌz ɡˈɪvən ðə fˈɜːst lˈaɪsəns baɪ sˌæn hwˈɑːn ɐθˈɔːɹɪɾiz tə dᵻlˈɪvɚɹ ˈɛɹ mˈeɪl θɹuːˈaʊt ðɪ ˈaɪlənd.
In 1931, Rigau Carrera was given the first license by San Juan authorities to deliver air mail throughout the island.