Answer
The Ottoman Empire was the destination of ʻAbdu'l-Bahá's family's relocation. This prominent empire held sway over a vast territory that encompassed parts of Europe, North Africa, and Western Asia during the 19th century. The Bahá'í faith, co-founded by ʻAbdu'l-Bahá's father Bahá'u'lláh, faced persecution and oppression in Persia, leading to the family's move to the Ottoman Empire seeking refuge and a more tolerant environment.