1800 in Algeria

1800 United States census

Acts of Union 1800

1800 United States presidential election

1800 United States gubernatorial elections

1800–01 United States Senate elections

Convention of 1800

1800 in the United States

1799–1800 papal conclave

1800 State of the Union Address

1800 United States elections

Raid on Dunkirk (1800)

Fiat 1800 and 2100

1800–01 United States House of Representatives elections

Imperial China: 900–1800

African military systems (1800–1900)

Thomas Mason (1753–1800)

Tobu 1800 series

1800 in Great Britain

1800 United States presidential election in Vermont

Glasgow Police Act 1800

1800 United States presidential election in Pennsylvania

1800 United States presidential election in South Carolina

Washington: Village and Capital, 1800–1878

1800 United States presidential election in Connecticut

1800 Connecticut's at-large congressional district special election

1800 New Hampshire's at-large congressional district special election

Premier Consul (1800)

Battle of Höchstädt (1800)

1800 United States presidential election in New York

Adèle (1800 brig)

Russian Rebels, 1600–1800

1800 United States presidential election in New Jersey

Action of 7 April 1800

1800 French constitutional referendum

1800 United States presidential election in Delaware

Francis Wedgwood (1800–1888)

April 1800 United States Senate special election in New York

List of battles 1601–1800

1800 United States presidential election in North Carolina

November 1800 United States Senate special election in New York

Robert Graydon (1744–1800)

IBM 1800 Data Acquisition and Control System

1800 United States presidential election in Kentucky

Nautilus (1800 submarine)

John Knox (1758–1800)

Timeline of British history (1800–1899)

Census Act 1800

Vingança (1800 ship)

1800 United States presidential election in Georgia

List of countries by population in 1800

Campaigns of 1800 in the Napoleonic Wars

1800 United States presidential election in Massachusetts

Pratt & Whitney X-1800

Argo (1800 ship)

Political history of Mysore and Coorg (1800–1947)

1800 United States presidential election in Maryland

1800 Massachusetts's 10th congressional district special election

1800 Massachusetts's 3rd congressional district special election

Siege of Genoa (1800) order of battle

1800–1801 United States House of Representatives elections in Rhode Island

List of Irish MPs 1798–1800

1800 United States presidential election in New Hampshire

Alexander Montgomery (1720–1800)

1800 United States presidential election in Tennessee

Maritime history of the United States (1800–1899)

List of acts of the Parliament of Great Britain from 1800

Timeline of entomology – 1800–1850

Before Homosexuality in the Arab-Islamic World, 1500–1800

HMS Guachapin (1800)

George Edgcumbe (1800–1882)

1800 United States presidential election in Virginia

1800 United States House of Representatives election in Delaware

List of Spanish artists (born 1500–1800)

Marcus Beresford (British Army officer, born 1800)

1800–1801 United States House of Representatives elections in Massachusetts

1800 Virginia's 13th congressional district special election

Charles Powell Leslie (1731–1800)

1800 United States presidential election in Rhode Island

Canada (1800 ship)

1800 Massachusetts's 4th congressional district special election

Duke of Clarence (1800 ship)

Sauer S 1800 UL

1800 in Austria

GSM frequency bands

French schooner Découverte (1800)

1800 in Argentina

HMS Courageux (1800)

John Murray (1726–1800)

Joseph Cowen (1800–1873)

List of wars: 1800–1899

Battle of Messkirch

History of English cricket (1776–1800)

1800 in Iceland

Charles Adams (1770–1800)

List of fellows of the Royal Society elected in 1800

Siege of Malta (1798–1800)

1800 United States House of Representatives elections in New York

1800 (disambiguation)

1800 in Ireland

Rolla (1800 ship)

1800 United States House of Representatives elections in South Carolina

Invasion of Curaçao (1800)

1800 in philosophy

List of shipwrecks in 1800

Timeline of the British Army 1800–1899

USS Trumbull (1800)

1800 United States House of Representatives elections in Vermont

1800 United States House of Representatives elections in Pennsylvania

Meitetsu 1800 series

1800 in Denmark

1800 in archaeology

1800 in Germany

Joshua Cooper (1732–1800)

SNCF Class BB 1800

Ocean (1800 EIC ship)

The Election of 1800

List of elections, 1701–1800

1800 in Scotland

Clothier (1800 ship)

Caroline (1800 ship)

1800 Virginia gubernatorial election

1800 in architecture

Suffolk (1800 ship)

French ship Intrépide (1800)

1800 Kentucky gubernatorial election

Robur LO 1800 A

1800 Maryland gubernatorial election

Caesar (1800 ship)

1800 Connecticut gubernatorial election

1800 in literature

Edward Miller Mundy (1800–1849)

1800 in science

1800 in Australia

Princess Louise of Saxe-Gotha-Altenburg (1800–1831)

Betsey (1800 ship)

Marquis de Somerulas (1800 ship)

List of ship launches in 1800

List of women who obtained doctoral degrees before 1800

1800 Massachusetts gubernatorial election

HMS Vengeance (1800)

18th century BC

Battle of the Malta Convoy

Transport vessels for the British Government's importation of rice from Bengal (1800–1802)

1800 New Jersey gubernatorial election

1800 North Carolina gubernatorial election

Histoire du mouvement anarchiste en France (1800–1914)

Nutwell (1800 ship)

Adelaide (1800 play)

Edward Baines (1800–1890)

John Warner (scholar)

Hind (1800 ship)

Sylvan (1800 ship)

1800 Rhode Island gubernatorial election

List of counties and boroughs of the unreformed House of Commons in 1800

Eliza (1800 ship)

1800 South Carolina gubernatorial election

Treason Act 1800

1800 in rail transport

Battle of Heliopolis (1800)

HMS Calpe (1800)

Camilla (1800 ship)

Siege of Genoa (1800)

1800 in South Africa

Caroline (1800 Philadelphia ship)

1800 N. Clybourn

1800 English cricket season

1800 New Hampshire gubernatorial election

Greenwich (1800 ship)

Charles Stewart (New Jersey politician)

Expansion of Russia (1500–1800)

Swan (1800 ship)

Combination Act 1799