Centuries: 18th century - 19th century - 20th century

Decades: 1770s 1780s 1790s - 1800s - 1810s 1820s 1830s

Years: 1800 1801 1802 1803 1804 1805 1806 1807 1808 1809

Events and Trends

• Beginning of the Napoleonic Wars (1803 - 1815).
• Semaphore is adopted by navies.
• United Kingdom founded in 1801

World Leaders

• Emperor Napoleon I (France)
• Emperor Francis II (Holy Roman Empire)
• Pope Pius VII
• Emperor Alexander I (Russia)
• King George III, (United Kingdom)
• President John Adams (United States)
• President Thomas Jefferson (United States)