The archive, year by year
The whole archive on one axis
Every one of the archive’s 2,798 cases lands somewhere on this line, from the sparse decades before mass notification to the alert-saturated present. Brush a range of years — or click a single one — to zoom that slice straight into the search page.
Eras of campus alerting
Five moments explain most of the shape above: two federal laws, one massacre, and two waves of threats that never materialized.
The Clery Act
Campus crime disclosure becomes federal law: colleges must publish crime statistics and warn their communities about ongoing threats. Every timely warning in this archive traces its legal DNA here.
Browse the 1990s →Virginia Tech and the ENS era
Thirty-two people are killed on April 16, 2007; the first campuswide email arrives more than two hours after the first shootings. The massacre makes mass-notification systems all but universal within two years.
Read the case →HEOA
The Higher Education Opportunity Act writes emergency notification into federal law: immediate notification upon confirmation of a significant emergency, publicly disclosed procedures, and an annual test.
Browse the policy archive →The HBCU bomb-threat wave
Dozens of historically Black colleges and universities receive coordinated bomb threats in January and February 2022, many timed to the first day of Black History Month.
See the 2022 HBCU cases →The swatting era
False active-shooter calls hit campuses at scale, forcing full lockdown responses to threats that turn out not to exist. The archive marks these honestly: resolved as hoax or unfounded, never as non-events.
Browse hoax and unfounded cases →