Some of the notable developments in the 18th and 19th century were
1. Weakening of the Mughal empire in India.
2. The beginning of the Industrial Revolution in England.
3. The beginning of British colonialism in India.
4. The American war of Independence.
5. The French Revolution.
6. The Napoleonic Wars.
8. The Revolutions in 1848 in Europe.
9. The unification of Germany and Italy.
10. The American civil war.