The Pioneer Service School began in the United States in December 1977 and since then has gradually extended worldwide.
Orílẹ̀-èdè Amẹ́ríkà la ti kọ́kọ́ ṣe Ilé Ẹ̀kọ́ Àwọn Aṣáájú-Ọ̀nà ní December 1977, kẹ̀rẹ̀kẹ̀rẹ̀ ó di ohun tá à ń ṣe nígun mẹ́rẹ̀ẹ̀rin ayé.