
An attack will only count as major, if it appears on this list.
Resolution criteria
An attack will only count as "major" if it appears on Wikipedia's list of major terrorist incidents, which includes terrorist incidents from around the world. Resolution will be determined by checking the Wikipedia list of terrorist incidents for any new entries added between now and December 20th, 2025. The market resolves YES if such an incident is documented; otherwise it resolves NO.
Background
Recent major incidents include the December 15, 2025 attack on a Hanukkah event in Sydney, Australia that killed 12, an Islamic State attack in Palmyra, Syria that killed three Americans, and a disrupted plot in Bavaria, Germany targeting a Christmas market. While these represent significant terrorist activity, only incidents meeting the 100+ fatality threshold would qualify as "major" under this market's criteria.