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Kepler's Platonic Solid Universe Model
Image by Johannes Kepler

Kepler's Platonic Solid Universe Model

A diagram showing the idea of Johannes Kepler (1571-1630) that the planets of the universe were made up of Platonic solids set within each other. From Kepler's Mysterium Cosmographicum (1596)
State of Nature
Definition by Mark Cartwright

State of Nature

The state of nature is an idea which became especially popular with certain philosophers during the Enlightenment, notably Thomas Hobbes (1588-1679), John Locke (1632-1704), and Jean-Jacques Rousseau (1712-1778). It refers to a state of existence...
France’s 1905 Law of Separation of Church and State
Article by Stephen M Davis

France’s 1905 Law of Separation of Church and State

The 1905 Law of Separation of Church and State was enacted as the climax of decades of conflict between monarchists and anticlerical Republicans who viewed Christianity as a permanent obstacle to the social development of the Republic. The...
Notes on the State of Virginia
Article by Joshua J. Mark

Notes on the State of Virginia

Notes on the State of Virginia (1785) is the only full-length work by Thomas Jefferson (l. 1743-1826) published in his lifetime and was written in response to questions from France regarding the thirteen states that formed the United States...
The Dreyfus Affair & the Separation of Church and State in France
Article by Stephen M Davis

The Dreyfus Affair & the Separation of Church and State in France

The Dreyfus Affair, or L'Affaire as it has become known, demonstrated the competing forces at work to either reestablish the monarchy and the Church in power or to solidify and advance the unfulfilled ideals of the 1789 French Revolution...
Money of the Chu State, China
Image by Osama Shukir Muhammed Amin

Money of the Chu State, China

The Chu State in south-east China had a unique culture of its own, yet also interacted with other states. This is reflected in the variety of its coinage: small bronze coins (known as "ant-nose" money modelled on cowrie shells), spade money...
Law of Separation of Churches and the State
Image by National Archives of France

Law of Separation of Churches and the State

Law of Separation of Churches and the State, 1905. National Archives of France.
Vienna State Opera, c. 1898
Image by Josef Löwy

Vienna State Opera, c. 1898

A photograph by Josef Löwy of the Vienna State Opera House, taken around 1898 when the composer Gustav Mahler (1860-1911) was its director.
British Imperial State Crown
Image by Cyril Davenport

British Imperial State Crown

The Imperial State Crown of the monarchy of the United Kingdom of Great Britain and Northern Island. Used in coronations and other state events, it contains the famous Black Prince’s ruby (actually a balas or spinel), the Cullinan II diamond...
Medieval Azerbaijani Helmet, State of Atabegs
Image by Urek Meniashvili

Medieval Azerbaijani Helmet, State of Atabegs

Medieval Azerbaijani helmet related to the period of Eldiguzids, State of Atabegs (12th century). National Museum of Art, Baku, Azerbaijan.
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