World History 1803

About the history of the world in 1803, John Dalton's Atomic theory of matter is proposed, Jefferson makes the Louisiana Purchase.

TWO CENTURIES OF WORLD HISTORY: 1778-1978

1803

English chemist John Dalton proposed an atomic theory of matter that became one of the bases of modern chemistry. He showed the atomic composition of molecules and made the first table of atomic weights.

Apr. 30 Thomas Jefferson purchased the Louisiana Territory from Napoleon and at one stroke doubled the size of the country. Because of the "desperate courage of 500,000 blacks in Haiti," Napoleon had soured on his American empire and was glad to let it go for 4? an acre, the biggest real estate bargain in U.S. history.

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