War related 1500-1999 ,
in which century deaths per thousand people world were low
Answers
It would be wrong to believe that the past was peaceful. One reason why some people might have this impression is that many of the past conflicts feature less prominently in our memories, they are simply forgotten.
An overview of all the conflicts for which we have an estimate of the number of fatalities is shown in the visualization below.
The red circles visualize the conflicts listed in the Conflict Catalog authored by Peter Brecke. Brecke's dataset contains information on 3708 conflicts, but for the more distant past it is still incomplete. Brecke is lacking an estimate of the number of fatalities for many past conflicts, and we can suspect that the existence of many conflicts is unknown altogether.
In addition to the individual conflicts, the death rate from all conflict across the globe is shown. (The red line uses the Conflict Catalogue data, and the blue line uses a dataset constructed from PRIO and UCDP data).