Deaths by decade
12 ten-year periods, 1903–2022. Recorded deaths, population denominators and the figures used in the chart.
Rooted Civilization / Titus Howe
Reader resources
The data behind Chapter 16, and corrections to the book.
Chapter 16 · Supporting data
Data version · September 2026These files preserve the data supplied with the September 2026 manuscript. They cover US K–12 school firearm deaths in 1903–2022, not all campus violence. The decade measure is cumulative, not an annual rate. Later data revisions will be listed separately.
English data files · CSV · Opens in Excel or Google Sheets
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Incident records
1,033 source records, with inclusion decisions, pending cases and source links. A row is not necessarily one incident or one death.
Annual school-age population
120 years of population estimates for ages 5–17, with source information and geographic definitions.
Corrections
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