Looking at all agent types shows there were 1 million hits to Solomon Northup: https://wikimedia.org/api/rest_v1/metrics/pageviews/per-article/en.wikipedia/all-access/all-agents/Solomon_Northup/daily/2015121200/2015121200

But looking at mobile-web and mobile-app, there are very very few hits that day. So it might be that this page was extremely popular only on desktops for just that day, but highly unlikely.