literally “rebirth,” the period in European civilization immediately following the Middle Ages, conventionally held to have been characterized by a surge of interest in classical learning and values. The Renaissance also witnessed the discovery and exploration of new continents, the substitution of the Copernican for the Ptolemaic system of astronomy, the decline of the feudal system and the growth of commerce, and the invention or application of such potentially powerful innovations as paper, printing, the mariner's compass, and gunpowder. To the scholars and thinkers of the day, however, it was primarily a time of the revival of classical learning and wisdom after a long period of cultural decline and stagnation.

A brief treatment of the Renaissance follows. For full treatment, see Europe, history of: The Renaissance (Europe, history of).

The term Middle Ages was coined by scholars in the 15th century to designate the interval between the downfall of the classical world of Greece and Rome and its rediscovery at the beginning of their own century, a revival in which they felt they were participating. Indeed, the notion of a long period of cultural darkness had been expressed by Petrarch even earlier. Events at the end of the Middle Ages, particularly beginning in the 12th century, set in motion a series of social, political, and intellectual transformations that culminated in the Renaissance. These included the increasing failure of the Roman Catholic Church and the Holy Roman Empire to provide a stable and unifying framework for the organization of spiritual and material life, the rise in importance of city-states and national monarchies, the development of national languages, and the breakup of the old feudal structures.

While the spirit of the Renaissance ultimately took many forms, it was expressed earliest by the intellectual movement called humanism. Humanism was initiated by secular men of letters rather than by the scholar-clerics who had dominated medieval intellectual life and had developed the Scholastic philosophy. Humanism began and achieved fruition first in Italy. Its predecessors were men like Dante and Petrarch, and its chief protagonists included Gianozzo Manetti, Leonardo Bruni, Marsilio Ficino, Pico della Mirandola, Lorenzo Valla, and Coluccio Salutati. The fall of Constantinople in 1453 provided Humanism with a major boost, for many eastern scholars fled to Italy, bringing with them important books and manuscripts and a tradition of Greek scholarship.

Humanism had several significant features. First, it took human nature in all of its various manifestations and achievements as its subject. Second, it stressed the unity and compatibility of the truth found in all philosophical and theological schools and systems, a doctrine known as syncretism. Third, it emphasized the dignity of man. In place of the medieval ideal of a life of penance as the highest and noblest form of human activity, the Humanists looked to the struggle of creation and the attempt to exert mastery over nature. Finally, Humanism looked forward to a rebirth of a lost human spirit and wisdom. In the course of striving to recover it, however, the Humanists assisted in the consolidation of a new spiritual and intellectual outlook and in the development of a new body of knowledge. The effect of Humanism was to help men break free from the mental strictures imposed by religious orthodoxy, to inspire free inquiry and criticism, and to inspire a new confidence in the possibilities of human thought and creations.

From Italy the new Humanist spirit and the Renaissance it engendered spread north to all parts of Europe, aided by the invention of printing, which allowed literacy and the availability of classical texts to grow explosively. Foremost among northern Humanists was Desiderius Erasmus, whose Praise of Folly (1509) epitomized the moral essence of Humanism in its insistence on heartfelt goodness as opposed to formalistic piety. The intellectual stimulation provided by Humanists helped spark the Reformation, from which, however, many Humanists, including Erasmus, recoiled. By the end of the 16th century the battle of Reformation and Counter-Reformation had commanded much of Europe's energy and attention, while the intellectual life was poised on the brink of the Enlightenment.

It was in art that the spirit of the Renaissance achieved its sharpest formulation. Art came to be seen as a branch of knowledge, valuable in its own right and capable of providing man with images of God and his creations as well as with insights into man's position in the universe. In the hands of men like Leonardo da Vinci it was even a science, a means for exploring nature and a record of discoveries. Art was to be based on the observation of the visible world and practiced according to mathematical principles of balance, harmony, and perspective, which were developed at this time. In the works of painters such as Masaccio, the brothers Lorenzetti, Fra Angelico, Botticelli, Perugino, Piero della Francesca, Raphael, and Titian; sculptors such as Pisano, Donatello, Verrocchio, Ghiberti, and Michelangelo; and architects such as Alberti, Brunelleschi, Palladio, Michelozzo, and Filarete, the dignity of man found expression in the arts.

In Italy the Renaissance proper was preceded by an important “proto-renaissance” in the late 13th and early 14th centuries, which drew inspiration from Franciscan radicalism. St. Francis had rejected the formal Scholasticism of the prevailing Christian theology and gone out among the poor praising the beauties and spiritual value of nature. His example inspired Italian artists and poets to take pleasure in the world around them. The work of the most famous artist of the proto-renaissance period, Giotto (Giotto di Bondone) (1266/67 or 1276–1337), reveals a new pictorial style that depends on clear, simple structure and great psychological penetration rather than on the flat, linear decorativeness and hierarchical compositions of his predecessors and contemporaries, such as the Florentine painter Cimabue and the Siennese painters Duccio and Simone Martini. The great poet Dante lived at about the same time as Giotto, and his poetry shows a similar concern with inward experience and the subtle shades and variations of human nature. Although his Divine Comedy belongs to the Middle Ages in its plan and ideas, its subjective spirit and power of expression look forward to the Renaissance. Petrarch and Boccaccio also belong to this proto-renaissance period, both through their extensive studies of Latin literature and through their writings in the vernacular. Unfortunately, the terrible plague of 1348 and subsequent civil wars submerged both the revival of humanistic studies and the growing interest in individualism and naturalism revealed in the works of Giotto and Dante. The spirit of the Renaissance did not surface again until the 15th century.

High Renaissance art, which flourished for about 35 years, from the early 1490s to 1527, when Rome was sacked by imperial troops, revolved around three towering figures: Leonardo da Vinci (1452–1519), Michelangelo (1475–1564), and Raphael (1483–1520). Each of the three embodied an important aspect of the period: Leonardo was the ultimate Renaissance man, a solitary genius to whom no branch of study was foreign; Michelangelo emanated creative power, conceiving vast projects that drew for inspiration on the human body as the ultimate vehicle for emotional expression; Raphael created works that perfectly expressed the classical spirit—harmonious, beautiful, and serene.

The creator of High Renaissance architecture was Donato Bramante (Bramante, Donato) (1444–1514), who came to Rome in 1499, when he was 55. His first Roman masterpiece, the Tempietto (1502) at S. Pietro in Montorio, is a centralized dome structure that recalls classical temple architecture. Pope Julius II (reigned 1503–13) chose Bramante to be papal architect, and together they devised a plan to replace the 4th-century Old St. Peter's with a new church of gigantic dimensions. The project was not completed, however, until long after Bramante's death.

Humanistic studies continued under the powerful popes of the High Renaissance, Julius II and Leo X, as did the development of polyphonic music. The Sistine Choir, which performed at services when the pope officiated, drew musicians and singers from all of Italy and northern Europe. Among the most famous composers who became members were Josquin des Prez (1445–1521) and Palestrina (1525–84).

The Renaissance as a unified historical period ended with the fall of Rome in 1527. The strains between Christian faith and classical humanism led to Mannerism in the latter part of the 16th century. Great works of art animated by the Renaissance spirit, however, continued to be made in northern Italy and in northern Europe.