1660 CE
A year defined by the restoration of Charles II to the English throne, the founding of the Royal Society's precursors, and the continuation of European colonial rivalries.
Geopolitics & Diplomacy
- Charles II was restored to the English throne in May, ending over a decade of republican rule following the English Civil War and the Protectorate of Oliver and Richard Cromwell.
- The Treaty of Oliva was signed in April, ending the Second Northern War between Sweden and Poland-Lithuania, with Sweden retaining most of its Baltic territories.
- Louis XIV of France married Maria Theresa of Spain in June, as part of the Treaty of the Pyrenees, linking the Bourbon and Habsburg dynasties.
- The Treaty of Copenhagen was signed in June, ending hostilities between Sweden and Denmark and confirming Swedish control over formerly Danish provinces in southern Scandinavia.
- The Dutch Republic maintained its position as a leading commercial power, continuing to expand trade networks across Asia, Africa, and the Americas.
- The Qing dynasty continued consolidating control over China, suppressing remaining Ming loyalist resistance in southern provinces.
- Leopold I was confirmed as Holy Roman Emperor, navigating the complex politics of the German principalities and the ongoing Ottoman threat.
- Portugal continued its War of Restoration against Spain, seeking full independence after sixty years of Iberian Union under the Spanish crown.
- The Mughal Empire under Aurangzeb expanded its territorial reach across the Indian subcontinent, pressing campaigns in the Deccan.
- Brandenburg-Prussia under Frederick William, the Great Elector, consolidated its position in northern Germany following the peace settlements of the Northern Wars.
Conflict & Security
- The English Restoration was achieved largely without bloodshed, though several regicides who had signed Charles I's death warrant were executed or imprisoned.
- The Second Northern War concluded with multiple treaties, leaving Sweden as a dominant Baltic power but financially exhausted from years of campaigning.
- Ming loyalist forces under Koxinga (Zheng Chenggong) continued resistance against Qing rule, preparing for a campaign to take Taiwan from the Dutch.
- The Portuguese War of Restoration continued with intermittent border skirmishes along the Spanish-Portuguese frontier.
- Ottoman forces maintained pressure on Habsburg territories in southeastern Europe, with frontier conflicts along the military border in Hungary and Croatia.
- Cossack forces in Ukraine remained a source of instability, caught between Polish-Lithuanian, Russian, and Ottoman spheres of influence.
- Piracy and privateering continued to disrupt maritime trade routes in the Caribbean, the Mediterranean, and Southeast Asian waters.
- The Deluge in Poland-Lithuania left the country devastated, with widespread destruction from years of Swedish, Russian, and Cossack invasions.
- The Maratha resistance to Mughal expansion in India intensified under the leadership of Shivaji, who conducted raids against Mughal-controlled territories.
- English colonial settlements in North America faced periodic conflicts with Indigenous peoples along the expanding frontier.
Economy & Finance
- The English Restoration brought a return of royal patronage and commercial activity to London, stimulating trade and investment after years of Puritan austerity.
- The Dutch East India Company continued to dominate the spice trade, maintaining profitable monopolies on cloves, nutmeg, and mace from the Moluccas.
- The transatlantic slave trade expanded as European colonial powers increased sugar, tobacco, and cotton production in the Americas.
- English Navigation Acts, originally passed under Cromwell, were reinforced under the restored monarchy to protect English shipping and colonial trade.
- Amsterdam remained the financial center of Europe, with its exchange bank and stock market facilitating international commerce.
- French mercantilist policies under Cardinal Mazarin sought to build domestic manufacturing and reduce dependence on foreign imports.
- The Baltic grain trade continued to be a vital component of European commerce, with Danzig and other ports shipping wheat to western Europe.
- Colonial sugar production in the Caribbean generated enormous wealth for English, French, and Dutch planters and merchants.
- Silver from Spanish American mines continued to flow into global trade networks, influencing economies from Europe to China.
- The woolen cloth trade remained England's most important export industry, with markets across Europe and the Near East.
Technology & Infrastructure
- Robert Boyle and Robert Hooke conducted experiments with an improved air pump, advancing understanding of the properties of air and vacuum.
- The pendulum clock, refined by Christiaan Huygens in the previous decade, gained wider adoption as a reliable timekeeping instrument.
- Advances in lens grinding improved the quality of telescopes and microscopes available to natural philosophers across Europe.
- Dutch engineering expertise in land reclamation and water management continued to set standards for hydraulic infrastructure in Europe.
- Ship design continued to evolve, with larger and more heavily armed vessels being built for both commercial and military purposes.
- Printing technology continued to spread knowledge, with London's presses resuming full activity after the relaxation of Puritan censorship.
- Road networks across Europe remained largely unpaved and poorly maintained, with travel between major cities slow and often dangerous.
- Canal construction in France and the Low Countries improved inland transportation of goods and raw materials.
- Mining techniques advanced incrementally, with deeper shafts and improved drainage methods allowing extraction of coal and metals.
- Architectural techniques blended classical and baroque styles, with major construction projects underway in royal courts across Europe.
Science & Discovery
- A group of natural philosophers in London began meeting regularly, forming the nucleus of what would become the Royal Society of London.
- Robert Boyle published preliminary findings on the relationship between air pressure and volume, laying groundwork for his later law of gases.
- Christiaan Huygens continued his work on optics and the wave theory of light from his base in the Netherlands.
- Marcello Malpighi began microscopic investigations of biological tissues in Italy, advancing the field of anatomy.
- Jan Swammerdam in the Netherlands conducted early investigations into insect anatomy and metamorphosis.
- The Accademia del Cimento continued its experimental work in Florence, contributing to the development of scientific methodology.
- Natural philosophers debated the nature of combustion, with experiments on the role of air in burning materials.
- Astronomical observations improved with better telescopes, with observers cataloging stars and tracking planetary movements.
- Mathematics advanced through the work of scholars such as John Wallis, who contributed to the development of infinitesimal calculus.
- European explorers and naturalists continued documenting the flora and fauna of newly encountered lands in the Americas, Africa, and Asia.
Health & Medicine
- Plague remained an endemic threat across Europe, with sporadic outbreaks in various cities disrupting trade and daily life.
- Thomas Willis, an English physician, advanced the study of the brain and nervous system through detailed anatomical investigations.
- Quinine from cinchona bark, imported from South America, was increasingly used to treat fevers associated with malaria in Europe.
- Medical education in European universities remained rooted in Galenic humoral theory, though new anatomical discoveries were gradually incorporated.
- Hospitals in major European cities served primarily as charitable institutions for the poor, with limited therapeutic interventions available.
- Midwifery remained the primary form of childbirth assistance, with male physicians only called for complicated deliveries.
- Smallpox continued to cause widespread mortality and disfigurement across Europe and increasingly in the Americas among Indigenous populations.
- Herbal remedies and folk medicine remained the primary healthcare for the vast majority of people in Europe and elsewhere.
- Anatomical theaters in Leiden, Padua, and other university cities attracted students and spectators to public dissections.
- The understanding of blood circulation, established by William Harvey decades earlier, was gradually gaining broader acceptance among physicians.
Climate & Environment
- The Little Ice Age continued to affect Europe, with colder than average temperatures impacting agriculture and food supplies.
- Deforestation in England accelerated as timber was consumed for shipbuilding, construction, and fuel, leading to growing scarcity.
- The expansion of sugar plantations in the Caribbean led to widespread clearing of tropical forests on islands such as Barbados and Jamaica.
- Flooding remained a persistent threat in the Low Countries, requiring constant maintenance of dikes and drainage systems.
- Overhunting reduced populations of large mammals in parts of Europe, including deer and wild boar in England.
- Atmospheric carbon dioxide concentration was approximately 275 parts per million, as later confirmed by ice core analysis.
- Severe winters in northern Europe disrupted agricultural cycles and contributed to food shortages in vulnerable regions.
- Soil exhaustion from continuous cropping without adequate rotation affected agricultural yields in parts of western Europe.
- Wetland drainage projects in England and the Netherlands converted marshes to farmland, altering local ecosystems.
- Volcanic activity around the world continued to influence regional weather patterns, though the mechanisms were not understood at the time.
Culture & Society
- The restoration of Charles II reopened English theaters, which had been closed under Puritan rule since 1642, reviving dramatic arts.
- Samuel Pepys began writing his famous diary in January, recording daily life in Restoration London with remarkable detail.
- Diego Velazquez, the great Spanish court painter, died in August, leaving behind masterworks including Las Meninas.
- The baroque style flourished in art, architecture, and music across Catholic Europe, with elaborate ornamentation and dramatic expression.
- Women appeared on the English stage for the first time, replacing the boy actors who had previously played female roles.
- Coffee houses spread in London and other European cities, becoming centers of social interaction, news, and intellectual discussion.
- Religious nonconformists in England faced renewed persecution under the restored monarchy, as the Anglican Church reasserted its authority.
- The Dutch Golden Age continued in painting, with artists such as Jan Vermeer and Rembrandt van Rijn producing celebrated works.
- Literacy rates in Europe remained low outside the merchant and upper classes, though printing was slowly expanding access to knowledge.
- The estimated world population was approximately 586 million, with the majority living in Asia, particularly in China and the Indian subcontinent.