ðə lˈiːɡ ɚɹˈɪdʒɪnəli kənsˈɪstᵻd əvə sˈɪŋɡəl sˈɛkʃən ʌv θˈɜːtiːn klˈʌbz, ænd ɔːlðˈoʊ nˈʌmbɚz ɹˈoʊz ænd fˈɛl, baɪ nˈaɪntiːnhˈʌndɹɪd θˈɜːɾi fˈaɪv hæd ɹˈiːtʃt ɐ stˈeɪbəl mˈɛmbɚʃˌɪp ʌv twˈɛnti klˈʌbz.
The league originally consisted of a single section of 13 clubs, and although numbers rose and fell, by 1935 had reached a stable membership of 20 clubs.