““Roar out the call of the Divine Kingdom,” ‘Abdu’l-Bahá wrote Martha Root in 1918. “Thou shalt witness great results and extraordinary confirmations.” In 1912, Martha Root had often attended talks by the Bahá’í leader as he traveled in North America. She arranged for him to speak in Pittsburgh, where she lived. She even met with him, and listening to him filled Martha with longing to spread his message of love and unity. She was so eager that she wrote to him in 1918, suggesting she go on a world tour to share the Bahá’í Faith. His answer thrilled her. By 1919, at age 47, she was stuffing her bags with books and pamphlets to set off for South America.