What Is Pi Day?: References & Edit History
Article Contributors
Primary Contributors
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Erik Gregersen
Erik Gregersen is a senior editor at Encyclopaedia Britannica, specializing in the physical sciences and technology. Before joining Britannica in 2007, he worked at the University of Chicago Press on the Astrophysical Journal. Prior to that, he worked at McMaster University on the ODIN radio astronomy satellite project.
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Article History
| Type | Description | Contributor | Date |
|---|---|---|---|
| Add new Web site: Al Jazeera - What is Pi Day? The story of the circle. | Aug 25, 2026 | ||
| New article added. | Mar 12, 2026 | ||
| Corrected display issue. | Mar 12, 2026 |
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