There is no parallel event in the history of the world that compares to ‘Abdu’l-Baha’s visit to the West

Look at the history of the world and try to find a parallel instance in which a native of the East has come to the countries of the West, particularly America, and called out to them in the churches and meetings there, raised the divine call in many of the large cities and invited everyone to the Abhá Kingdom, with no one taking exception. Nay, on the contrary, those present at the gatherings have heard him with patience and unbounded joy. These things have been achieved solely through the confirmations of the Abhá Kingdom. (Words of ‘Abdu’l-Baha, September 13, 1912, Chicago, 'Mahmud’s Diary')