American Revolution took place in 1765 and 1783 French and Indian war happened in 1754 to 1763 Napoleonic wars happened in 1803 to 1815 Reign of Terror occurred in 1793 to 1794.
Based on their year of happening, the first war that occurred was the French and Indian War. Followed by the American Revolution; then, the Reign of Terror. Finally, the Napoleonic Wars.