<P> The Late Middle Ages was marked by difficulties and calamities including famine, plague, and war, which significantly diminished the population of Europe; between 1347 and 1350, the Black Death killed about a third of Europeans . Controversy, heresy, and the Western Schism within the Catholic Church paralleled the interstate conflict, civil strife, and peasant revolts that occurred in the kingdoms . Cultural and technological developments transformed European society, concluding the Late Middle Ages and beginning the early modern period . </P> <P> The Middle Ages is one of the three major periods in the most enduring scheme for analysing European history: classical civilisation, or Antiquity; the Middle Ages; and the Modern Period . </P> <P> Medieval writers divided history into periods such as the "Six Ages" or the "Four Empires", and considered their time to be the last before the end of the world . When referring to their own times, they spoke of them as being "modern". In the 1330s, the humanist and poet Petrarch referred to pre-Christian times as antiqua (or "ancient") and to the Christian period as nova (or "new"). Leonardo Bruni was the first historian to use tripartite periodisation in his History of the Florentine People (1442). Bruni and later historians argued that Italy had recovered since Petrarch's time, and therefore added a third period to Petrarch's two . The "Middle Ages" first appears in Latin in 1469 as media tempestas or "middle season". In early usage, there were many variants, including medium aevum, or "middle age", first recorded in 1604, and media saecula, or "middle ages", first recorded in 1625 . The alternative term "medieval" (or occasionally "mediaeval" or "mediæval") derives from medium aevum . Tripartite periodisation became standard after the German 17th - century historian Christoph Cellarius divided history into three periods: Ancient, Medieval, and Modern . </P> <P> The most commonly given starting point for the Middle Ages is 476, first used by Bruni . For Europe as a whole, 1500 is often considered to be the end of the Middle Ages, but there is no universally agreed upon end date . Depending on the context, events such as Christopher Columbus's first voyage to the Americas in 1492, the conquest of Constantinople by the Turks in 1453, or the Protestant Reformation in 1517 are sometimes used . English historians often use the Battle of Bosworth Field in 1485 to mark the end of the period . For Spain, dates commonly used are the death of King Ferdinand II in 1516, the death of Queen Isabella I of Castile in 1504, or the conquest of Granada in 1492 . Historians from Romance - speaking countries tend to divide the Middle Ages into two parts: an earlier "High" and later "Low" period . English - speaking historians, following their German counterparts, generally subdivide the Middle Ages into three intervals: "Early", "High", and "Late". In the 19th century, the entire Middle Ages were often referred to as the "Dark Ages", but with the adoption of these subdivisions, use of this term was restricted to the Early Middle Ages, at least among historians . </P>

Why is it called the middle ages and medieval history
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