1355 (year and number)

Overview of 1355 as an integer and as a year in the 14th century, describing its arithmetic properties, historical context, notable developments in Europe and the Mediterranean, and its broader significance.

1355 can be treated both as a numerical value and as a calendar year of the mid-14th century. As a number it appears in arithmetic, numbering systems and labels; as a year it belongs to an era shaped by demographic collapse, warfare and institutional change across Europe and beyond.

Numeric properties

In arithmetic, 1355 is an odd composite integer. Its prime factorization is 5 × 271, so it has four positive divisors: 1, 5, 271 and 1355. The sum of these divisors is 1,632. It is not a perfect square, a perfect power, or a triangular number; in Roman numerals it is written MCCCLV. These basic properties locate 1355 among ordinary positive integers used for counting and cataloguing.

Year 1355: historical context

The calendar year 1355 (in the Julian calendar) falls within a turbulent mid-14th century. Europe was still recovering from the Black Death of the late 1340s, which had severe demographic and economic consequences. Political and military tensions continued, most prominently the intermittent campaigns of the Hundred Years' War between England and France. The papal court remained at Avignon, and power shifts in the eastern Mediterranean and the Balkans included the growing influence of Turkish principalities.

Notable developments around 1355

Military activity: Raids, sieges and mounted incursions (chevauchées) were used by belligerents in the Hundred Years' War to damage enemy resources and assert control over contested regions.
Social and economic change: Labor shortages, changes in landholding patterns, and evolving taxation and legal arrangements were widespread consequences of population decline that continued to shape societies.
Religious and administrative matters: The Avignon Papacy faced political pressures and fiscal demands, while local churches and rulers negotiated jurisdiction, finance and reform.
Regional shifts: In the eastern Mediterranean and the Balkans, frontier principalities and rising powers altered local balances, affecting trade routes and diplomatic relations.

Importance and legacy

Although the single year 1355 is not usually cited as a unique turning point, it exemplifies a period when pandemic aftermath, military conflict and institutional adaptation combined to reshape medieval Europe. Trends evident in and around 1355 fed into later political settlements, legal developments and cultural responses that influenced the course of the late Middle Ages. As a number, 1355 continues to serve as an identifier in chronology, numbering systems and reference works.