Over the next century various proposals were made until the Ural River prevailed in the mid-19th century.
ˌoʊvɚ ðə nˈɛkst sˈɛntʃɚɹi vˈɛɹiəs pɹəpˈoʊzəlz wɜː mˌeɪd ʌntˈɪl ðə jˈuːɚɹəl ɹˈɪvɚ pɹɪvˈeɪld ɪnðə mˈɪd nˈaɪntiːnθ sˈɛntʃɚɹi.