WHAT HAPPENED IN 1812.
Look what happened the 1812.

War of 1812: Great Britain revokes the restrictions on American commerce, thus eliminating one of the chief reasons for going to war. (23. June 1812)

Napoleonic Wars: Napoleon's Grande Armée crosses the Neman River beginning the invasion of Russia. (24. June 1812)

War of 1812: the United States invades Canada at Windsor, Ontario. (12. July 1812)

The Treaties of Orebro ends both the Anglo-Russian and Anglo-Swedish Wars. (18. July 1812)

Napoleonic Wars: Peninsular War – Battle of Salamanca – British forces led by Arthur Wellesley (later the Duke of Wellington) defeat French troops near Salamanca, Spain. (22. July 1812)

Peninsular War: French troops engage British-Portuguese forces in the Battle of Majadahonda. (11. August 1812)

War of 1812: The Battle of Fort Dearborn is fought between United States troops and Potawatomi at what is now Chicago, Illinois. (15. August 1812)

War of 1812: American General William Hull surrenders Fort Detroit without a fight to the British Army. (16. August 1812)

War of 1812: American frigate USS Constitution defeats the British frigate HMS Guerriere off the coast of Nova Scotia, Canada earning the nickname "Old Ironsides". (19. August 1812)

Peninsular War: A coalition of Spanish, British, and Portuguese forces succeed in lifting the two-and-a-half-year-long Siege of Cádiz. (24. August 1812)

24 settlers are killed in the Pigeon Roost Massacre in Indiana. (3. September 1812)

War of 1812: The Siege of Fort Harrison begins when the fort is set on fire. (4. September 1812)

War of 1812: The Siege of Fort Wayne begins when Chief Winamac's forces attack two soldiers returning from the fort's outhouses. (5. September 1812)

French invasion of Russia : The Battle of Borodino, the bloodiest battle of the Napoleonic Wars, was fought near Moscow and resulted in a French victory. (7. September 1812)

War of 1812: A supply wagon sent to relieve Fort Harrison is ambushed in the Attack at the Narrows. (13. September 1812)

Napoleonic Wars: The French Grande Armée enters Moscow. The Fire of Moscow begins as soon as Russian troops leave the city. (14. September 1812)

The French army under Napoleon reaches the Kremlin in Moscow. (15. September 1812)

War of 1812: A second supply train sent to relieve Fort Harrison is ambushed in the Attack at the Narrows. (15. September 1812)

The Fire of Moscow begins shortly after midnight and destroys three quarters of the city days later. (16. September 1812)

The 1812 Fire of Moscow dies down after destroying more than three-quarters of the city. Napoleon returns from the Petrovsky Palace to the Moscow Kremlin, spared from the fire. (18. September 1812)