Famous Birthdays·March 18·Francis Lieber
Francis Lieber

USFrancis Lieber

A political philosopher who drafted the first modern code of wartime conduct, shaping the international laws of war.

1798–1872 (age 74)·German-American jurist, gymnast and political philosopher·Birthday: March 18

Photo: Mathew Benjamin Brady · Public domain

Biography

Francis Lieber's life was forged in the tumult of the Napoleonic Wars, which he fought in as a young Prussian. Wounded at Waterloo, his subsequent intellectual pursuits led him to America, where he became a professor of history and political economy. His profound understanding of conflict and governance culminated during the American Civil War when, at the request of General Henry Halleck, he drafted General Orders No. 100, known as the Lieber Code. This document was a revolutionary attempt to humanize warfare, defining concepts like military necessity, distinguishing combatants from civilians, and prohibiting torture. It became the foundational text for all subsequent international laws of armed conflict, embedding ethical considerations into the machinery of war.

#1 When Francis Was Born

The biggest hits of 1798

Francis's Life & Times

The world at every milestone

1798Born
1803Started school
1811Became a teenager
1814Could drive
1816Could vote
1819Turned 21
1828Turned 30
1838Turned 40
1848Turned 50
1858Turned 60
1868Turned 70
President: Andrew Johnson
1872Died at 74
President: Ulysses S. Grant

Key Achievements

  • Authored the Lieber Code in 1863, the first comprehensive codification of the laws of war for the Union Army.
  • His work directly influenced the Hague Conventions of 1899 and 1907 and the later Geneva Conventions.
  • Was a founding faculty member of Columbia College's law school and a pioneering scholar in political science.

Did You Know?

He was imprisoned multiple times in Prussia for his liberal nationalist activities before emigrating.

He coined the term "cyclopedia" and edited the first significant American encyclopedia, the Encyclopaedia Americana.

Two of his sons fought in the Civil War; one for the Union and one for the Confederacy, and one was killed.

“No civilization can exist without law; no society can progress without the restraint of law.”

— Francis Lieber

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