Analysis in progress
Building the edit-history map
Pulling revision metadata, checking activity spikes, and preparing the charts.
Finding the article
Reading recent revisions
Counting editors
Checking revert pressure
Drawing timelines
Pulling revision metadata, checking activity spikes, and preparing the charts.
Last edited Jun 30, 2026
8,257
Total Edits
2,855
Unique Editors
10/10
Controversy Score
2001
Created
2,009
Watchers
26%
Minor Edits
217K
Monthly Views
8
Edits (90d)
The Wikipedia article on Periodic table has been edited 8,257 times by 2,855 different editors since it was created roughly 25 years ago in 2001. That works out to an average of about 330 edits per year, though activity is rarely spread evenly — most articles see long quiet stretches punctuated by short bursts of intense editing.
With a controversy score of 10/10, this is one of the more contested articles on English Wikipedia. A score this high means edits are frequently reverted — editors are undoing each other's work rather than building on it, which is the classic signature of an active dispute over how the subject should be described. Readers should treat sections of this article as potentially unstable, and check the talk page to understand what the disagreements are about.
Within the 500 most recent revisions we analysed, the single most active contributor is Double sharp, responsible for about 49% of the changes in that window. That is a notably high concentration — when one account makes a large share of the edits, the article’s framing can lean heavily on a single person’s perspective, which is worth keeping in mind when you read it. The busiest year in our data was 2023, when editing activity peaked — spikes like this usually line up with real-world news events involving the subject.
The sections that show up most often in edit summaries are Future extension beyond the seventh period, Group 3, Metallicity, Period 1, Valence and oxidation states. These are the parts of the article that editors revisit most — a useful shortcut to where the action, and any disagreement, is concentrated.
All figures above are computed live from Wikipedia's public revision data. For a deeper explanation of what these numbers mean, see our guides on edit wars, article quality ratings, and how to read an edit history.
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Showing last 500 edits — 2023 to 2026
Sections appearing most in edit summaries.
| # | Editor | Edits | |
|---|---|---|---|
| 1 | Double sharp | 245 | |
| 2 | Sandbh | 40 | |
| 3 | Citation bot | 23 | |
| 4 | YBG | 10 | |
| 5 | OmegaMantis | 7 | |
| 6 | OAbot | 7 | |
| 7 | Nikkimaria | 6 | |
| 8 | DMacks | 5 | |
| 9 | ReadOnlyAccount | 5 | |
| 10 | HeyElliott | 5 |