Christ appeared in this world nineteen hundred years ago to establish ties of unity and bonds of love between the various nations and different communities. He cemented together the sciences of Rome and the splendors of the civilization of Greece. He also accomplished affiliation between the Assyrian kingdom and the power of Egypt. The blending of these nations in unity, love and agreement had been impossible, but Christ through divine power established this condition among the children of men.
A much greater difficulty confronts us today when we endeavor to establish unity between the Orient and the Occident. Bahá'u'lláh through the power of heaven has brought the East and the West together. Erelong we shall know that they have been cemented by the power of God.
(Abdu’l-Baha, the promulgation of Universal Peace, p. 18)