Venice (pp 887–891)

In Venice, Gottfried Wilhelm von Leibniz writes to Eliza, Countess de la Zeur, reflecting on the rapid political and scientific shifts reshaping Europe in the summer of 1689.

“Eliza, Countess de la Zeur, to d’Avaux” — The Comte d’Avaux was a premier French diplomat and spymaster whose extensive intelligence network in the Dutch Republic made him one of the most formidable obstacles to William of Orange.

“Sophie Charlotte in Berlin” — The future first Queen in Prussia, Sophia Charlotte was a highly educated patron of the arts and a lifelong friend of Leibniz, who helped her found the Prussian Academy of Sciences.

“SOPHIE” — Sophia of the Palatinate was the Electress of Hanover and a granddaughter of James I; her intellectual curiosity and political status made her the crucial link in the Hanoverian Succession to the British throne.

“new Tsar in Russia, named Peter” — Peter the Great would eventually transform Russia from a medieval backwater into a modern European power through radical westernization and the construction of St. Petersburg.

“Russians have signed a treaty with the Emperor of China” — The 1689 Treaty of Nerchinsk was the first treaty between Russia and the Qing dynasty, successfully delimiting the border along the Amur River and establishing formal trade relations.

“The Holy League have taken Lipova” — This victory occurred during the Great Turkish War, a massive conflict where a coalition of European powers sought to reclaim territory in the Balkans and Hungary from the Ottoman Empire.

“Louis XIV” — Known as the “Sun King,” Louis XIV of France defined the era of absolute monarchy, using his massive military and the splendor of Versailles to dominate European politics for over seventy years.

“financing the Army and Navy by creating a national debt” — This shift marked the Financial Revolution, where England adopted Dutch-style banking and public credit systems, eventually leading to the creation of the Bank of England.

“James II is said to have landed in Ireland” — The Williamite War in Ireland was the Irish theater of the Nine Years’ War, where the deposed James II attempted to use Catholic support in Ireland to launch a counter-revolution against William III.

“furor of the Damplatz” — The Dam Square was the location of the Amsterdam Stock Exchange, the world’s first formal stock market where modern financial instruments like short selling and options were pioneered.

“welcome Huguenots or anyone else he thought had unusual skills” — Huguenots were French Protestants who fled in the hundreds of thousands after the Revocation of the Edict of Nantes; their exodus provided a massive “brain drain” of skilled artisans and intellectuals to France’s rivals.

“It is a shame that smallpox claimed him” — Smallpox was a ubiquitous and terrifying killer in the 17th century, frequently wiping out entire branches of royal families and causing sudden, chaotic shifts in national successions.

“atrocities being committed against Germans by the army of Louvois” — The Marquis de Louvois, Louis XIV’s brutal war minister, orchestrated the systematic devastation of the Palatinate to create a “scorched earth” barrier against French enemies.

“ancestors among the Guelphs and the Ghibellines” — The Guelphs and Ghibellines were rival factions in medieval Italy supporting the Pope and the Holy Roman Emperor, respectively; Leibniz spent years tracing these lineages to bolster the dynastic claims of his Hanoverian employers.

“I am thinking of calling it “dynamics,”” — Leibniz coined the term Dynamics to describe the study of forces and energy (vis viva), distinguishing it from statics and laying the groundwork for modern classical mechanics.