ITA2 was in turn based on the 5-bit telegraph code that Émile Baudot invented in 1870 and patented in 1874.
ˌaɪtˌiːˈeɪ tˈuː wʌz ɪn tˈɜːn bˈeɪst ɔnðə fˈaɪvbˈɪt tˈɛlᵻɡɹˌæf kˈoʊd ðæt ɪmˈaɪl bˈɔːdɑːt ɪnvˈɛntᵻd ɪn wˈʌn θˈaʊzənd ˈeɪthˈʌndɹɪd sˈɛvənti ænd pˈæʔn̩ɾᵻd ɪn wˈʌn θˈaʊzənd ˈeɪthˈʌndɹɪd sˈɛvənti fˈoːɹ.