August 9 is the 221st day of the year in the Gregorian Calendar (222nd in leap years), with 144 days remaining. ... // Events Prix de Rome scholarship established for students of the arts. ... October 31 is the 304th day of the year (305th in leap years) in the Gregorian Calendar, with 61 days remaining, as the final day of October. ... // Events April 11 - War of the Spanish Succession: Treaty of Utrecht June 23 - French residents of Acadia given one year to declare allegiance to Britain or leave Nova Scotia Canada first Orrery built by George Graham Ongoing events Great Northern War (1700-1721) War of the Spanish Succession (1702-1713... The title of Grand Duke (Latin, Magnus Dux; German, Großherzog, Russian, Великий князь) used in Slavic, Baltic, and Germanic countries, is ranked in honour below King but higher than a sovereign Duke (Herzog) or Prince (Fürst). ... Cosimo III de Medici, Grand Duke of Tuscany (14 August 1642 â 31 October 1723) was Grand Duke of Tuscany from 1670 to 1723. ...