How would history be affected if Britain was never invaded by barbarians or Normans?
What do you think would happen if Toba erupted in 1815 AD?
What would happen if it were the Eastern Roman Empire that fell into ruin, not the West?
The most memorable events in modern history--the Renaissance, the founding of America, the journeys of Lewis and Clark, the Napoleonic Wars--happened during a moment of climate chaos called the Little Ice Age. What would happen if the cold snap never came?