Context : The Treaty of Passarowitz or Treaty of Požarevac was the peace treaty signed in Požarevac (Serbian Cyrillic: Пожаревац, German: Passarowitz, Turkish: Pasarofça, Hungarian: Pozsarevác), a town in the Ottoman Empire (modern Serbia), on 21 July 1718 between the Ottoman Empire on one side and the Habsburg Monarchy of Austria and the Republic of Venice on the other. 
Question : What is the date when Treaty of Passarowitz happened?
21 July 1718