Periodic table

The Wikipedia article on Periodic table has been edited 8,259 times since it was created in 2001, by 2,856 distinct accounts and IP addresses. That averages about 333 recorded changes a year, or several every day, which puts it among the more actively maintained pages on the encyclopedia.

Within the revisions retrieved for this report, the ten busiest contributors account for about 70% of the changes. Editing that concentrated usually means a small group of regulars is doing the maintenance, which tends to produce consistent wording — and also means the page reflects a narrow set of contributors. In the same window, about 8% of the retrieved revisions came from bot accounts, which handle routine work such as link repair and reference formatting.

Within the retrieved window, 2023 carries the most recorded activity, with 239 changes. 9 of those revisions fall in the last 90 days. The most recent recorded edit was 30 days ago.

Readership has been broadly stable across the last two years of pageview data. The clearest peak in that record falls in September 2025. Traffic spikes and editing spikes often line up, but the revision record alone cannot tell you which one caused the other, or whether an outside event drove both.

This report is built from the 500 most recent revisions retrieved from Wikipedia, about 6% of the 8,259 recorded edits. Figures drawn from that window describe the window only, and the report cannot establish why a change was made or whether it was correct. For older revisions, talk-page discussion and full context, follow the source history on Wikipedia.