Millennium Prize Problems saw 75x more Wikipedia readers than usual

What this article is

The Millennium Prize Problems are seven well-known complex mathematical problems selected by the Clay Mathematics Institute in 2000. Each of the problems has a prize of one million US dollars for the first correct solution, pledged by the Clay Mathematics Institute.

Summary text from the Wikipedia article "Millennium Prize Problems", available under CC BY-SA 4.0. Read the full article.

Where editors were working

Wikipedia editors made 23 edits to this article on 2026-09-09, concentrated in these sections. This is evidence about the surge, not an explanation of it.

• Navier–Stokes existence and smoothness
• Overview

What changed that day

The article grew by 760 characters that day. The largest single addition was 360 characters. See everything that changed on 2026-09-09 in Wikipedia's own diff view — that is where the reason for a surge is usually visible, written and sourced by the editors who were following the story.

How this was measured

Views are Wikimedia's own pageview counts for en.wikipedia, filtered to agent=user so automated traffic is excluded. The baseline is the median of the previous 60 days, which is used instead of the mean so that an earlier surge cannot flatten a later one. The multiple is the day's views divided by that median.