The Proclamation of Bahá’u’lláh is a compilation of letters containing His summons to the monarchs and rulers of the world, His summons to religious leaders and His summons to humanity. Included are tablets addressed directly to world leaders such as Queen Victoria, The Pope and the Tsar of Russia calling on them to rule with justice and compassion. These letters explain the “spiritualisation of the world” that must occur before the Most Great Peace prophesied by Bahá’u’lláh can be established.