Elmer Ambrose Sperry: References & Edit History
More Articles On This Topic
Article Contributors
Primary Contributors
-
The Editors of Encyclopaedia Britannica
Encyclopaedia Britannica's editors oversee subject areas in which they have extensive knowledge, whether from years of experience gained by working on that content or via study for an advanced degree. They write new content and verify and edit content received from contributors.
Other Encyclopedia Britannica Contributors
Article History
| Type | Description | Contributor | Date |
|---|---|---|---|
| Anniversary information added. | Jun 12, 2025 | ||
| First paragraph modernization. | Apr 09, 2024 | ||
| Add new Web site: Engineering and Technology History Wiki - Elmer A. Sperry. | Jun 18, 2021 | ||
| Add new Web site: The Franklin Institute - Case Files: Elmer A. Sperry (Gyroscopic Compass). | Jun 13, 2018 | ||
| Add new Web site: Lemelson-MIT - Biography of Elmer Ambrose Sperry. | Mar 07, 2017 | ||
| Add new Web site: Naval History and Heritage Command - Biography of Elmer Ambrose Sperry. | Aug 12, 2013 | ||
| Add new Web site: National Aviation Hall of Fame - Biography of Elmer Ambrose Sperry, Sr. | Aug 12, 2013 | ||
| Add new Web site: PBS - Who Made America? - Biography of Elmer Ambrose Sperry. | Aug 12, 2013 | ||
| Add new Web site: Lemelson-MIT - Biography of Elmer Ambrose Sperry. | Aug 12, 2013 | ||
| Added new Web site: National Inventors Hall of Fame - Biography of Elmer Ambrose Sperry. | Dec 23, 2008 | ||
| Added new Web site: The Elmer A. Sperry award - Biography of Elmer Ambrose Sperry. | Dec 23, 2008 | ||
| Article added to new online database. | Jul 20, 1998 |
View Changes:
Article History
Revised:
By: