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Interestingly, do you know which invention made medieval civil wars far less common?

  • Gunpowder 249 votes (23.1%)
  • The printing press 423 votes (39.2%)
  • Standing national armies 219 votes (20.3%)
  • Double-entry bookkeeping 187 votes (17.3%)

Total votes: 1,078

The answer is standing national armies.

Most people assume gunpowder changed everything. In reality, historians often argue that permanent state armies gradually removed military power from feudal nobles, making private wars much harder to wage.