April 18, 1808
1808 United States presidential election — 6th quadrennial U.S. presidential election
Siege during the Russo-Persian War in 1808
1808 minor naval battle of the Gunboat War
Naval battle of the English Wars and the Gunboat War fought off Zealand Point, resulting in a victory of the British over the Danish forces
Action of 4 April 1808
1808 battle in Norway
Dos de Mayo Uprising — 1808 rebellion during the Peninsular War
1808 naval battle of the Gunboat War between Denmark-Norway and the United Kingdom
Battle of the Dano-Swedish War of 1808–09
1808 battle in Peninsular War