1842 - The Webster-Ashburton Treaty is signed. In the treaty, the United States and Great Britain agree to cooperate in suppressing the slave trade. 1867 - One officer and 46 Marines and Seamen from the steamer, USS Wachusett, land at Shanghai, China, to assist in fighting a fire. 1942 - A Japanese force runs through the Allied forces guarding Savo Sound, sinking three American heavy cruisers, USS Quincy (CA 39), USS Vincennes (CA 44), and USS Astoria (CA 34), along with other damaged Allied vessels. As a result of the loss, the sound gains the nickname, Iron Bottom Sound.