History Flow — "Chocolate" vs. "Abortion"
In these visualizations contrasting a highly controversial entry (abortion, below) and a very popular one (chocolate, at left), each color corresponds to a different contributor.History Flow / Abortion [ Lightbox Interpretation ]
Zigzag patterns represent debate. Each vertical "revision line" indicates the beginning of changed or updated text, and its length indicates the length of the text, rendering with relative precision the level of debate surrounding the topic. Blank zones show points where an article has been completely deleted - a common phenomenon on controversial topics.