Italy By Jessika17 Jan 12, 1848 Italy's kingdom adopted a liberal constitution. Sep 22, 1852 Count Camillo di Cavour become prime minister of Sardinia Aug 13, 1856 The Ottomans granted equal citizensip to all people under their rule Feb 11, 1858 The French emperor Napoleon III agreed to help drive Austriaout of the northern Italian provinces. Apr 14, 1866 Austrian provence of venetia became apart of Italy May 6, 1866 Prussia gained control of the newly organized North German Confederation, aunion of Prussia and 21 smaller German political units.