Question: what important events happened in the 18th century?
Answer: The Glorious Revolution (1688) ... 
War of the Spanish Succession (1701-1714) ... 
War of the Austrian Succession (1740-1748) ... 
The Seven Year's War (1756-1763) ... 
The American Revolution (1775-1783) ... 
The French Revolution (1789-1799) ... 
The Napoleonic Wars (1803-1815)