The Bahá’í Writings / ‘Abdu’l‑Bahá / The Promulgation of Universal Peace Talks ‘Abdu’l‑Bahá Delivered in Cambridge and Boston The Promulgation of Universal Peace · ‘Abdu’l‑Bahá · 10 words Talks ‘Abdu’l‑Bahá Delivered in Cambridge and Boston 22–25 May 1912 ← – 51 – – 52 – →