1856

After three years of fighting involving Russia against an alliance of the Ottoman Empire, Britain, France, and Sardinia, the conflict centered on influence in the Black Sea region and Ottoman territories. Negotiations culminated in the Congress of Paris, where the Treaty of Paris was signed on March 30, 1856. Key provisions neutralized the Black Sea by barring warships, reorganized the Danubian principalities, and guaranteed Ottoman territorial integrity. Russia ceded southern Bessarabia, and Christians in Ottoman lands gained limited rights. The agreement restored a fragile European balance.

Event Detail

1856

Science 19th Century North America

Eunice Foote Presents Pioneering Climate Research

In the mid-19th century, scientists increasingly studied atmospheric gases and their effects on temperature amid growing interest in geology and physics. American scientist Eunice Newton Foote conducted experiments showing that carbon dioxide and water vapor absorb heat from sunlight far more than other gases like oxygen or nitrogen. On August 23, 1856, her paper "Circumstances affecting the heat of the sun's rays" was presented by Joseph Henry to the American Association for the Advancement of Science meeting in Albany, New York, as women were not permitted to present themselves. Foote concluded that an atmosphere rich in CO2 would produce a warmer Earth, providing one of the earliest documented insights into the greenhouse effect and its potential climate implications.

Event Detail Guided Physics

1856 Timeline

Treaty of Paris Ends the Crimean War

Eunice Foote Presents Pioneering Climate Research