1818 Event Russia's Czar Alexander I petitions for a Jewish state in Palestine 1800 Event Free black community of Philadelphia petitions Congress to abolish slave 1797 Event Congress refuses to accept 1st petitions from American blacks 1790 Event Society of Friends petitions Congress for abolition of slavery 1788 Event Gustavus Vassa petitions Queen Charlotte, to free enslaved Africans 1077 Event German king Henry IV petitions Pope Gregory VII for forgiveness 1077 Event German King Heinrich IV petitions Pope Gregory VII for forgiveness
