The Black Death reached Europe in 1347, with the earliest well documented European outbreaks occurring in Mediterranean regions during that year. The disease is generally associated with the arrival of plague at the Sicilian port of Messina in October 1347, although the precise chronology and details of the earliest transmission events are subject to historical uncertainty. From Mediterranean entry points, plague spread rapidly through maritime trade and overland networks. The European pandemic then developed through 1348, 1349, 1350 and into the early 1350s, although different regions experienced outbreaks at different times. The arrival of plague in Europe was therefore a process rather than a single continent wide event occurring on one day.
The disease was already present farther east before reaching Europe. Plague outbreaks occurred around the Black Sea and in areas connected to the Mongol world during the 1340s. One frequently discussed episode occurred at the siege of Caffa in Crimea, where plague was present among besieging forces. Medieval accounts describe claims that infected bodies were thrown into the city, but the reliability and precise significance of this account remain debated. What is clearer is that Caffa was a major trading port connected to Mediterranean commercial networks. Ships leaving the Black Sea could carry infected people, animals or contaminated materials toward Mediterranean ports, providing plausible routes for further transmission.
Sicily was one of the earliest European regions to experience the epidemic. Contemporary and near contemporary sources describe severe disease and mortality at Messina in 1347. From Sicily, maritime connections facilitated movement toward other Mediterranean ports. Southern Italy, mainland Italian cities and other Mediterranean regions were affected soon afterwards. Italian commercial networks were extensive, connecting ports to North Africa, the eastern Mediterranean and western Europe. This network meant that the epidemic could travel considerable distances relatively quickly. Maritime transport was particularly important because ships could connect communities separated by hundreds of kilometres within a relatively short period.
By 1348 the Black Death had spread widely across continental Europe. Major Italian cities such as Genoa, Venice and Florence experienced severe outbreaks, while the disease also reached southern France and the Iberian Peninsula. Marseille was affected in 1347 to 1348, providing an important western Mediterranean pathway. From France and other connected regions, plague continued northward. The spread was not a smooth wave because separate outbreaks could emerge along trade routes and local transmission chains. Population movement, shipping, roads and commercial contacts all influenced the speed and direction of spread.
The Black Death reached England in 1348. It is generally thought to have arrived at the southern coastal port of Melcombe, near modern Weymouth in Dorset, during the summer of that year. From southern England, the disease spread through ports, towns and rural communities. London experienced a major outbreak during the winter of 1348 to 1349. By 1349 the epidemic had spread through much of England, while further outbreaks reached Wales and Scotland. The English experience demonstrates how quickly plague could move from coastal entry points through inland populations using established travel and trade networks.
Northern Europe experienced the epidemic later than the Mediterranean and southern European regions. By 1349 the disease had spread into many parts of France, the Low Countries and German speaking regions, while Scandinavia and other northern areas experienced outbreaks subsequently. Norway was affected in 1349, with the disease reaching the country through maritime connections. Sweden and Denmark experienced major outbreaks later. The Baltic and North Sea trade systems helped connect northern communities to the wider European epidemic. Geographic distance alone did not determine timing because maritime routes could move disease rapidly between distant ports.
The spread across Europe continued into 1350 and the early 1350s, with eastern and peripheral regions affected at different times. The epidemic did not necessarily reach every settlement simultaneously or with equal intensity. Some communities experienced repeated outbreaks, while others had comparatively limited documented mortality. Population density, trade connections, local ecology, sanitation, geography and existing immunity all influenced disease dynamics. Medieval records are also uneven, meaning that absence of documentation does not necessarily prove that a community was unaffected. Chronologies are therefore reconstructed from multiple forms of evidence rather than from one comprehensive European record.
The European arrival of the Black Death is best understood as the beginning of a major pandemic phase rather than the start of all plague in Europe. Plague had existed in earlier historical periods, most famously during the Justinianic Plague beginning in the sixth century, and it continued after the fourteenth century. The fourteenth century pandemic was nevertheless exceptional in scale.
By the early 1350s, much of Europe had experienced the first major wave, but recurrent plague remained a feature of European history for centuries. The chronology from 1347 onward illustrates how commercial networks, population movement and ecological conditions connected distant medieval societies and allowed a highly lethal infectious disease to spread across the continent.
