- February 11 - Anthracite coal 1st burned as fuel, experimentally.
- February - Russia issues an ultimatum to Sweden, to join France Denmark and Russia and attacks Finland.
- May - Fortress of Sveaborg in Helsinki lost by Sweden to Russia.
- November - Swedish troops evacuate Finland, tsar Alexander proclaims Finland a part of Russia.
- Change of emperor of the Ottoman Empire from Mustafa IV (1807-1808) to Mahmud II (1808-1839)