List of attacks related to primary schools

These are attacks that have occurred on school property or related primarily to school issues or events. A narrow definition of attack is used for this list to exclude attacks during warfare, robberies, gang violence, political or police attacks (as related to protests), accidents, single suicides, and murder-suicides by rejected spouses or suitors, as they are not the type of mass murder event that is the focus of concern.

Source: Wikipedia — List of attacks related to primary schools (CC BY-SA 4.0)