Violent disturbance occurred in about one year out of four over two millennia

Evidence

In actuality, violent actions occur very often; but they do not occur as often as alternatives. Sorokin (1937, pp. 409–475) found, over two millennia, about one year of violent disturbance out of every four. — John T. Jost and Jim Sidanius, Political Psychology, 4311

Categorization

• SHARE: A single citable statistic for anyone working on collective violence baserates — a quarter of all years across two millennia saw violent disturbance.
• XREF: connects to: Across two millennia humanity saw violent political disturbance about one year in four. — John T. Jost and Jim Sidanius, Political Psychology: Key Readings, 4311; Disturbance is an act of renewal when its frequency is balanced — Robin Wall Kimmerer, Gathering Moss: A Natural and Cultural…, 305