1980 – Ethernet specifications are published by Xerox working with Intel and Digital Equipment Corporation.
1943 – The United States Merchant Marine Academy is dedicated by President Roosevelt.
1938 – The League of Nations unanimously outlaws "intentional bombings of civilian populations".
1935 – The Hoover Dam, astride the border between the U.S. states of Arizona and Nevada, is dedicated.
1882 – Thomas Edison's first commercial hydroelectric power plant (later known as Appleton Edison Light Company) begins operation.
