| 1909 - The Underwriters Rules Committee, of which NECA's Earnest McCleary is a member, completes a recodification of the National Electrical Code. |
| 1909 - Under the title "Universal Data and Sales Book," a NECA committee headed by G. M. Sanborn develops the first publication to compile electrical equipment and component prices. NECA issues this resource to all members. |
| 1910 - NECA appoints an Executive Committee, consisting of the President, Secretary, and six members at large appointed by the Board of Directors. |
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| 1901 - The National Bureau of Standards is established. |
| 1901 - Walt Disney, film producer, born (1901-1966). |
| 1901- Louis Armstrong, jazz musician, born (1901-1971). |
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