1600 - San Marino adopts its written constitution.
1871 - Four major fires break out on the shores of Lake Michigan in Chicago, Peshtigo, Wisconsin, Holland, Michigan, and Manistee, Michigan. The Great Chicago Fire is the most famous of these, having left nearly 100,000 people homeless.
1973 - Yom Kippur War: Gabi Amir's armored brigade attacks Egyptian occupied positions on the Israeli side of the Suez Canal, in hope of driving them away. The attack fails, and over 150 Israeli tanks are destroyed.