# Columbine High School massacre

> school shooting at Columbine High School in Columbine, Colorado, United States on April 20, 1999

**Wikidata**: [Q473845](https://www.wikidata.org/wiki/Q473845)  
**Wikipedia**: [English](https://en.wikipedia.org/wiki/Columbine_High_School_massacre)  
**Source**: https://4ort.xyz/entity/columbine-high-school-massacre


## References

1. [Source](https://www2.census.gov/geo/maps/blk1990/st08_Colorado/08059_Jefferson/90B08059_000.pdf)
2. [Source](https://www2.census.gov/geo/maps/DC2020/DC20BLK/st08_co/county/c08059_jefferson/DC20BLK_C08059.pdf)
3. [Source](https://www2.census.gov/geo/maps/DC2020/DC20BLK/st08_co/place/p0816110_columbine/DC20BLK_P0816110.pdf)
4. [Source](https://www2.census.gov/geo/maps/blk1990/st08_Colorado/08059_Jefferson/90B08059_030.pdf)
5. [Source](https://www2.census.gov/geo/maps/blk1990/st08_Colorado/08059_Jefferson/90B08059_035.pdf)
6. [Source](https://www.vpc.org/studies/wgun990420.htm)
7. Freebase Data Dumps. 2013
8. BBC Things
9. [Source](http://www.acolumbinesite.com/victim/injured.html)
10. [Source](https://vault.fbi.gov/Columbine%20High%20School%20)
11. [Source](http://www.acolumbinesite.com/victim/sanders.html)
12. [Source](http://www.acolumbinesite.com/victim/cassie.html)
13. [Source](http://www.acolumbinesite.com/victim/isaiah.html)
14. [Source](https://www.therebelsproject.org/heather)
15. [Source](http://www.acolumbinesite.com/victim/memoriam.html)
16. National Library of Israel