Wargames are as old as civilization—and perhaps older. In his informative and entertaining Public Broadcasting series Connections, James Burke argued that the first invention, the one that enabled all later inventions, was the plow. It allowed agriculture, and as agriculture permitted denser populations, the frequency of inventions increased, due either to “connecting” with new applications or combining with other inventions to create one that was greater than the sum of its parts.
Caffrey, Matthew B. Jr., "On Wargaming" (2019). The Newport Papers. 43.