Pan Am Flight 103 saw 20x more Wikipedia readers than usual

What this article is

Pan Am Flight 103 was a regularly scheduled Pan Am transatlantic flight from Frankfurt to Detroit via a stopover in London and another in New York City. Shortly after 19:00 on 21 December 1988, the Boeing 747 Clipper Maid of the Seas was destroyed by a bomb while flying over the Scottish town of Lockerbie, killing all 243 passengers and 16 crew aboard. Large sections of the aircraft crashed in a residential street in Lockerbie, killing 11 residents. With a total of 270 fatalities, the event, which became known as the Lockerbie bombing, is the deadliest terrorist attack in the history of the United Kingdom and one of the deadliest terror attacks in European history.

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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.