Classical antiquity

Science is a systematic discipline that builds and organises knowledge in the form of testable hypotheses and predictions about the universe. Modern science is typically divided into two – or three – major branches: the natural sciences, which study the physical world, and the social sciences, which study individuals and societies. While referred to as the formal sciences, the study of logic, mathematics, and theoretical computer science are typically regarded as separate because they rely on deductive reasoning instead of the scientific method as their main methodology. Meanwhile, applied sciences are disciplines that use scientific knowledge for practical purposes, such as engineering and medicine.

The history of science spans the majority of the historical record, with the earliest identifiable predecessors to modern science dating to the Bronze Age in Egypt and Mesopotamia (c. 3000–1200 BCE). Their contributions to mathematics, astronomy, and medicine entered and shaped the Greek natural philosophy of classical antiquity and later medieval scholarship, whereby formal attempts were made to provide explanations of events in the physical world based on natural causes; while further advancements, including the introduction of the Hindu–Arabic numeral system, were made during the Golden Age of India and Islamic Golden Age. The recovery and assimilation of Greek works and Islamic inquiries into Western Europe during the Renaissance revived natural philosophy, which was later transformed by the Scientific Revolution that began in the 16th century as new ideas and discoveries departed from previous Greek conceptions and traditions. The scientific method soon played a greater role in the acquisition of knowledge, and in the 19th century, many of the institutional and professional features of science began to take shape, along with the changing of "natural philosophy" to "natural science".

Jesus (c. 6 to 4 BC – AD 30 or 33), also referred to as Jesus Christ, Jesus of Nazareth, and many other names and titles, was a 1st-century Jewish preacher and religious leader in the Roman province of Judaea. He is the central figure of Christianity, the world's largest religion. Most Christians consider Jesus to be the incarnation of God the Son and awaited messiah, or Christ, a descendant from the Davidic line that is prophesied in the Old Testament. Virtually all modern scholars of antiquity agree that Jesus existed historically. Accounts of Jesus's life are contained in the Gospels, especially the four canonical Gospels in the New Testament. Since the Enlightenment, academic research has yielded various views on the historical reliability of the Gospels and how closely they reflect the historical Jesus.

According to Christian tradition, as preserved in the Gospels and the Acts of the Apostles, Jesus was circumcised at eight days old, was baptized by John the Baptist as a young adult, and after 40 days and nights of fasting in the wilderness, began his own ministry. He was an itinerant teacher who interpreted the law of God with divine authority and was often referred to as "rabbi". Jesus often debated with his fellow Jews on how to best follow God, engaged in healings, taught in parables, and gathered followers, among whom 12 were appointed as his apostles. He was arrested in Jerusalem and tried by the Jewish authorities, handed over to the Roman government, and crucified on the order of Pontius Pilate, the Roman prefect of Judaea. After his death, his followers became convinced that he rose from the dead, and following his ascension, the community they formed eventually became the early Christian Church that expanded as a worldwide movement.

The modern era or the modern period is considered the current historical period of human history. It was originally applied to the history of Europe and Western history for events that came after the Classical antiquity and the Middle Ages, often from around the year 1500, like the Reformation in Germany giving rise to Protestantism. Since the 1990s, it has been more common among historians to refer to the period after the Middle Ages and up to the 19th century as the early modern period. The modern period is today more often used for events from the 19th century until today. The time from the end of World War II (1945) can also be described as being part of contemporary history. The common definition of the modern period today is often associated with events like the French Revolution, the Industrial Revolution, and the transition from nationalism toward the liberal international order.

The modern period has been a period of significant development in the fields of science, politics, warfare, and technology. It has also been an Age of Discovery and globalization. During this time, the European powers and later their colonies, strengthened their political, economic, and cultural colonization of the rest of the world. It also created a new modern lifestyle and has permanently changed the way people around the world live.

In the history of Europe, the Middle Ages or medieval period lasted approximately from the 5th to the late 15th centuries, comparable with the post-classical period of global history. It began with the fall of the Western Roman Empire and transitioned into the Renaissance and the Age of Discovery. The Middle Ages is the middle period of the three traditional divisions of Western history: classical antiquity, the medieval period, and the modern period. The medieval period is itself subdivided into the Early, High, and Late Middle Ages.

Population decline, counterurbanisation, the collapse of centralised authority, invasions, and mass migrations of tribes, which had begun in Late antiquity (c. ~3rd–8th centuries) and into the Early Middle Ages (c. 5th–10th centuries). The large-scale movements of the Migration Period, including various Germanic peoples, formed new kingdoms in what remained of the Western Roman Empire. In the 7th century, North Africa and the Middle East—once part of the Byzantine Empire—came under the rule of the Umayyad Caliphate, an Islamic empire, after conquest by Muhammad's successors. Although there were substantial changes in society and political structures, the break with classical antiquity was incomplete. The still-sizeable Byzantine Empire, Rome's direct continuation, survived in the Eastern Mediterranean and remained a major power. The empire's law code, the Corpus Juris Civilis or "Code of Justinian", was rediscovered in Northern Italy in the 11th century. In the West, most kingdoms incorporated the few extant Roman institutions. Monasteries were founded as campaigns to Christianise the remaining pagans across Europe continued. The Franks, under the Carolingian dynasty, briefly established the Carolingian Empire during the later 8th and early 9th centuries. It covered much of Western Europe but later succumbed to the pressures of internal civil wars combined with external invasions: Vikings from the north, Magyars from the east, and Saracens from the south.

The history of science covers the development of science from ancient times to the present. It encompasses all three major branches of science: natural, social, and formal. Protoscience, early sciences, and natural philosophies such as alchemy and astrology that existed during the Bronze Age, Iron Age, classical antiquity and the Middle Ages, declined during the early modern period after the establishment of formal disciplines of science in the Age of Enlightenment.

The earliest roots of scientific thinking and practice can be traced to Ancient Egypt and Mesopotamia during the 3rd and 2nd millennia BCE. These civilizations' contributions to mathematics, astronomy, and medicine influenced later Greek natural philosophy of classical antiquity, wherein formal attempts were made to provide explanations of events in the physical world based on natural causes. After the fall of the Western Roman Empire, knowledge of Greek conceptions of the world deteriorated in Latin-speaking Western Europe during the early centuries (400 to 1000 CE) of the Middle Ages, but continued to thrive in the Greek-speaking Byzantine Empire. Aided by translations of Greek texts, the Hellenistic worldview was preserved and absorbed into the Arabic-speaking Muslim world during the Islamic Golden Age. The recovery and assimilation of Greek works and Islamic inquiries into Western Europe from the 10th to 13th century revived the learning of natural philosophy in the West. Traditions of early science were also developed in ancient India and separately in ancient China, the Chinese model having influenced Vietnam, Korea and Japan before Western exploration. Among the Pre-Columbian peoples of Mesoamerica, the Zapotec civilization established their first known traditions of astronomy and mathematics for producing calendars, followed by other civilizations such as the Maya.

Renaissance art (1350 – 1620) is the painting, sculpture, and decorative arts of the period of European history known as the Renaissance, which emerged as a distinct style in Italy in about AD 1400, in parallel with developments which occurred in philosophy, literature, music, science, and technology. Renaissance art took as its foundation the art of Classical antiquity, perceived as the noblest of ancient traditions, but transformed that tradition by absorbing recent developments in the art of Northern Europe and by applying contemporary scientific knowledge. Along with Renaissance humanist philosophy, it spread throughout Europe, affecting both artists and their patrons with the development of new techniques and new artistic sensibilities. For art historians, Renaissance art marks the transition of Europe from the medieval period to the Early Modern age.

The body of art, including painting, sculpture, architecture, music and literature identified as "Renaissance art" was primarily produced during the 14th, 15th, and 16th centuries in Europe under the combined influences of an increased awareness of nature, a revival of classical learning, and a more individualistic view of man. Scholars no longer believe that the Renaissance marked an abrupt break with medieval values, as is suggested by the French word renaissance, literally meaning "rebirth". In many parts of Europe, Early Renaissance art was created in parallel with Late Medieval art.

The Renaissance (UK: /rɪˈneɪsəns/ rin-AY-sənss, US: /ˈrɛnəsɑːns/ REN-ə-sahnss) is a period of history and a European cultural movement covering the 15th and 16th centuries. It marked the transition from the Middle Ages to modernity and was characterized by an effort to revive and surpass the ideas and achievements of classical antiquity. Associated with great social change in most fields and disciplines, including art, architecture, politics, literature, exploration and science, the Renaissance was first centered in the Republic of Florence, then spread to the rest of Italy and later throughout Europe. The term rinascita ("rebirth") first appeared in Lives of the Artists (c. 1550) by Giorgio Vasari, while the corresponding French word renaissance was adopted into English as the term for this period during the 1830s.

The Renaissance's intellectual basis was founded in its version of humanism, derived from the concept of Roman humanitas and the rediscovery of classical Greek philosophy, such as that of Protagoras, who said that "man is the measure of all things". Although the invention of metal movable type sped the dissemination of ideas from the later 15th century, the changes of the Renaissance were not uniform across Europe: the first traces appear in Italy as early as the late 13th century, in particular with the writings of Dante and the paintings of Giotto.

The Italian Renaissance (Italian: Rinascimento [rinaʃʃiˈmento]) was a period in Italian history during the 15th and 16th centuries. The period and place are known for the initial development of the broader Renaissance culture that spread from Italy to the rest of Europe (and also to extra-European territories ruled by colonial powers or where Christian missionaries and/or traders were active). The period was one of transition: it sits between the Middle Ages and the modern era. Proponents of a "long Renaissance" argue that it started around the year 1300 and lasted until about 1600. In some fields, a Proto-Renaissance, beginning around 1250, is typically accepted. The French word renaissance (corresponding to rinascimento in Italian) means 'rebirth', and defines the period as one of cultural revival and renewed interest in classical antiquity after the centuries during what Renaissance humanists labelled as the "Dark Ages". The Italian Renaissance historian Giorgio Vasari used the term rinascita ('rebirth') in his Lives of the Most Excellent Painters, Sculptors, and Architects in 1550, but the concept became widespread only in the 19th century, after the work of scholars such as Jules Michelet and Jacob Burckhardt.

The Renaissance began in Tuscany in Central Italy and centered in the city of Florence. The Florentine Republic, one of the several city-states of the peninsula, rose to economic and political prominence by providing credit to European monarchs and by laying the groundwork for developments in capitalism and banking. Renaissance culture later spread to Venice, the heart of a Mediterranean empire controlling trade routes with the east since its participation in the Crusades and following the journeys of Marco Polo between 1271 and 1295. Thus Italy renewed contact with the remains of ancient Greek culture, which provided humanist scholars with new texts. Finally the Renaissance had a significant effect on the Papal States and on Rome, largely rebuilt by humanist and Renaissance popes, such as Julius II and Leo X, who frequently became involved in Italian politics, in arbitrating disputes between competing colonial powers and in opposing the Protestant Reformation, which started c. 1517.

"In his explicit turn back to an ancient model in search of knowledge and wisdom, Leonardo follows early humanist practice. What he finds in Vitruvius is a mathematical formula for the proportions of all parts of the human body, which results in its idealized representation as the true microcosmic measure of all things. [...]The perfection of this ideal human form corresponds visually to the early humanist belief in the unique central placement of human beings within the divine universal order and their consequent human grandeur and dignity, expressed in the philosopher Pico della Mirandola's Oration on the Dignity of Man (1486), known as the manifesto of the Renaissance."

Renaissance humanism is a worldview centered on the nature and importance of humanity that emerged from the study of Classical antiquity.

Renaissance humanists sought to create a citizenry able to speak and write with eloquence and clarity, and thus capable of engaging in the civic life of their communities and persuading others to virtuous and prudent actions. Humanism, while set up by a small elite who had access to books and education, was intended as a cultural movement to influence all of society. It was a program to revive the cultural heritage, literary legacy, and moral philosophy of the Greco-Roman civilization.

The Pontic–Caspian Steppe is a steppe extending across Eastern Europe to Central Asia, formed by the Caspian and Pontic steppes. It stretches from the northern shores of the Black Sea (the Pontus Euxinus of antiquity) to the northern area around the Caspian Sea, where it ends at the Ural-Caspian narrowing, which joins it with the Kazakh Steppe in Central Asia, making it a part of the larger Eurasian Steppe. Geopolitically, the Pontic–Caspian Steppe extends from northeastern Bulgaria and southeastern Romania through Moldova, southern and eastern Ukraine, through the North Caucasus of southern Russia, and into the Lower Volga region where it straddles the border of southern Russia and western Kazakhstan. Biogeographically, it is a part of the Palearctic realm, and of the temperate grasslands, savannas, and shrublands biome.

The area corresponds to Cimmeria, Scythia, and Sarmatia of classical antiquity. Across several millennia, numerous tribes of nomadic horsemen used the steppe; many of them went on to conquer lands in the settled regions of Central and Eastern Europe, West Asia, and South Asia.