1740 CE
A year defined by the death of Emperor Charles VI and the beginning of the War of the Austrian Succession, the accession of Frederick the Great, and a devastating winter across Europe.
Geopolitics & Diplomacy
- Holy Roman Emperor Charles VI died on October 20, leaving his daughter Maria Theresa as heir to the Habsburg dominions under the Pragmatic Sanction.
- Frederick II ascended to the throne of Prussia on May 31 following the death of his father Frederick William I, beginning a reign that would reshape European power.
- Maria Theresa assumed the Habsburg throne but faced immediate challenges to her succession from Bavaria, Saxony, and Spain, which disputed the Pragmatic Sanction.
- King Philip V of Spain continued to press Bourbon claims in Italy and sought to place his sons on Italian thrones.
- The Anglo-Spanish conflict known as the War of Jenkins' Ear continued, with Britain conducting naval operations against Spanish colonial territories.
- France under Cardinal Fleury pursued cautious diplomacy, initially reluctant to challenge the Pragmatic Sanction openly.
- The Ottoman Empire maintained peace with its European neighbors following the Treaty of Belgrade of 1739.
- The Dutch Republic reaffirmed its guarantee of the Pragmatic Sanction but remained reluctant to commit military forces.
- Russia under Empress Anna continued its alliance with Austria, though the empress's declining health created uncertainty in Russian foreign policy.
- Sweden and the Ottoman Empire engaged in diplomatic exchanges as Sweden sought allies against Russia in anticipation of future conflicts.
Conflict & Security
- Frederick the Great invaded the Austrian province of Silesia in December, launching the First Silesian War and igniting the broader War of the Austrian Succession.
- The War of Jenkins' Ear continued in the Caribbean, with British forces conducting raids against Spanish colonial ports.
- British forces in the Caribbean prepared for larger expeditions against Spanish colonial strongholds following Admiral Vernon's capture of Portobelo the previous year.
- Nadir Shah of Persia continued military campaigns in Central Asia, maintaining one of the era's most aggressive empires.
- The Maratha Empire in India expanded its influence across the subcontinent, challenging Mughal authority in multiple regions.
- Corsican rebels continued their resistance against Genoese rule, seeking independence for the island.
- Piracy remained a persistent threat in the Mediterranean and Caribbean, despite naval patrols by European powers.
- The Russo-Swedish tensions simmered as both nations eyed territorial ambitions in the Baltic region.
- Border conflicts between British and French colonial settlers in North America continued over disputed territories.
- Prussian military reforms under Frederick the Great modernized the army that would soon invade Silesia.
Economy & Finance
- The Great Frost of 1740 devastated European agriculture, causing widespread crop failures and famine across Ireland, Britain, and the continent.
- Irish famine reached catastrophic proportions during the severe winter, killing an estimated proportion of the population comparable to the later Great Famine.
- The British East India Company expanded its trading operations in Bengal, increasing exports of textiles and spices.
- The Dutch East India Company continued to dominate the spice trade in Southeast Asia despite growing competition.
- French colonial trade with the Caribbean sugar islands remained a major source of wealth for the French economy.
- The Spanish treasure fleet system continued to transport silver and gold from the Americas to Europe.
- Prussian economic reforms under the new king Frederick II aimed to strengthen the state's financial capacity for military expenditure.
- The silk industry in Lyon, France, remained one of Europe's most important manufacturing centers.
- Baltic grain trade was disrupted by the severe winter, exacerbating food shortages across northern Europe.
- The transatlantic slave trade continued to expand, with European powers transporting enslaved Africans to plantations in the Americas.
Technology & Infrastructure
- Benjamin Huntsman developed the crucible steel process in Sheffield, England, producing higher quality steel for clock springs and cutting tools.
- Canal construction continued across Europe as nations invested in inland waterway networks for transporting goods.
- The Newcomen atmospheric engine continued to be deployed in British mines for pumping water, an early application of steam power.
- Road construction across France advanced under the corvée system, which required peasants to labor on royal highways.
- Shipbuilding techniques improved across European naval yards as powers expanded their fleets for colonial and military purposes.
- The development of precision clockmaking advanced in London and Paris, with improved escapement mechanisms.
- Windmill technology in the Netherlands continued to power drainage, milling, and industrial operations.
- Iron smelting using coke fuel, pioneered by Abraham Darby, continued to expand in the English Midlands.
- Printing technology remained the primary means of mass communication, with newspapers and pamphlets circulating in major European cities.
- Agricultural implements remained largely unchanged, with wooden plows and hand tools dominating farming across Europe.
Science & Discovery
- European universities continued to serve as centers of Enlightenment thought, with Leiden, Gottingen, and Edinburgh attracting students from across the continent.
- Leonhard Euler published important work on mathematical analysis, contributing to the development of calculus and number theory.
- The severe winter of 1740 prompted naturalists across Europe to document unusual weather patterns and their effects on wildlife.
- Swedish botanist Carl Linnaeus continued developing his system of biological classification at Uppsala University.
- French astronomer Jacques Cassini continued mapping France with improved geodetic techniques.
- The Royal Society of London continued to publish Philosophical Transactions, disseminating scientific discoveries across Europe.
- Georg Wilhelm Steller participated in Vitus Bering's second expedition, studying the natural history of the North Pacific.
- Swiss naturalist Abraham Trembley began his experiments on freshwater hydra, which would revolutionize understanding of animal regeneration.
- Observations of the transit of Mercury contributed to ongoing efforts to measure the solar parallax and determine astronomical distances.
- Botanical gardens in Leiden, Paris, and London continued to catalog and study plant specimens from around the world.
Health & Medicine
- The Great Frost of 1740 caused widespread mortality from cold, hunger, and disease across Europe, particularly among the poor.
- Famine-related diseases including typhus and dysentery spread through Ireland and parts of Britain during the severe winter.
- Smallpox remained one of the most deadly diseases in Europe, killing thousands annually and leaving survivors scarred.
- The practice of variolation against smallpox continued to spread slowly among European elites following its introduction from the Ottoman Empire.
- Hospital construction expanded in major European cities, though medical care remained rudimentary by modern standards.
- Epidemic fevers swept through military camps and crowded urban areas, exacerbated by the harsh winter conditions.
- Herbal remedies and folk medicine remained the primary form of treatment for the vast majority of Europeans.
- The London hospitals, including Guy's Hospital, continued to serve as centers for medical training and patient care.
- Midwifery remained the dominant form of childbirth assistance, with male physicians only rarely involved in deliveries.
- Scurvy continued to plague long-distance sailors, though the connection to diet was increasingly recognized by naval surgeons.
Climate & Environment
- The Great Frost of 1740 was one of the coldest winters in European recorded history, with rivers and harbors freezing solid across the continent.
- Atmospheric carbon dioxide concentration was approximately 277 parts per million, as later confirmed by ice core analysis.
- The Thames in London froze during the harsh winter, disrupting river commerce and daily life.
- Widespread crop failures resulted from the extreme cold, leading to grain shortages and famine conditions in Ireland and continental Europe.
- Livestock perished in large numbers across northern Europe as fodder supplies ran out during the prolonged freeze.
- Deforestation continued across western Europe as timber was harvested for fuel, construction, and shipbuilding.
- The severe winter killed many fruit trees across England and France, affecting orchard production for years afterward.
- Flooding followed the spring thaw in many river valleys, compounding the agricultural devastation caused by the frost.
- European forests continued to be managed under royal and noble authority, with restrictions on peasant wood gathering.
- Coastal erosion affected parts of the English and Dutch coastlines, prompting ongoing investments in sea defenses.
Culture & Society
- Samuel Richardson published Pamela, or Virtue Rewarded, widely considered one of the first modern English novels.
- The Marquis de Sade was born on June 2 in Paris, a figure who would become notorious in literary and philosophical history.
- Frederick the Great brought Enlightenment culture to the Prussian court, patronizing music, philosophy, and the arts.
- Coffee houses in London and Paris continued to serve as important centers of intellectual and political discussion.
- The Georgian architectural style dominated English building, with elegant townhouses and public buildings transforming cities.
- Opera continued to flourish across European courts, with Italian opera seria remaining the dominant form.
- The Enlightenment spread through salons in Paris, where philosophers and writers debated reason, liberty, and progress.
- Religious revivalism continued in the American colonies, with the Great Awakening movement influencing colonial society.
- The University of Glasgow and other Scottish universities became important centers of Enlightenment thought and education.
- The world population was approximately 744 million.