Science and Technology


The largest contribution of Byzantium to the science is considered the continuation and preservation of knowledge of the ancient world through the  reproduction of texts in the byzantine calligraphic workshops. However, the Byzantines were not limited to the copying of ancient manuscripts but they also wrote new ones where their empirical discoveries and technological achievements were reported.

The theological and hagiological secretariat of Byzantium has incorporated many findings of the ancient science. For example, Philo of Alexandria and Basil the Great analyzed the sacred text of Genesis in such a way as to match the generally accepted astronomical model of the Greco-Roman tradition of spherical geocentric world. In Constantinople the works of ancient and modern scholars as Euclid, Archimedes, Apollonius of Perge in Pamphylia, Claudius Ptolemy, Diophantus, Theon Alexanricus (the father of Hypatia) and others, were republished at that time. Arab sources report the presence of Byzantine scholars in Baghdad and Damascus, which from the beginning of the 9th century proved to be centers of mathematics, especially algebra, and astronomy. In general, Byzantium during that period was in constant contact with the Arab caliphate and their expertise, both in pacific and martial works, was largely shared, as can be assumed by the example of the greek fire, which was largely shared.

The most important evidence about the impact of the arab science to byzantine scholars, especially where solving of practical mathematical problems and planning of astronomical tables is concerned, derives from this period. These astronomical tables contained predictions of the positions of the celestial bodies, the conjugations and the eclipses that proved to be very useful in calculating Easter time and making horoscopes.

Already in Late Antiquity, the science of medicine was cultivated by great doctors and theoreticians of therapeutics and pharmacology in the major cities of the empire. The works of the great Greek physicians, Hippocrates and Galen formed the foundation of Byzantine medicine, although doctors didn't strictly followed the instructions of the ancient writings but enriched their knowledge through observation and experience. In the middle and late Byzantium, the development of medicine was based on writings such as the Anatomy of Gender by the monk Meletius focusing on human anatomy and physiology, the Medical Compendium of doctor Leo focusing on the theory of medicine, remedies and surgery, the Compendium of treating diseases by Theophanes Chrysobalantes and many more.

The sciences of architecture and engineering are those where both the differentiation of Byzantium from the older tradition and its contribution to the advancement of science are more evident. During the Late Antiquity is known that in Istanbul and other cities of the empire special schools functioned, attended by those who wanted to become architects. There, the works of Euclid, Vitruvius and Pappus of Alexandria were studied and the subjects of arithmetic, geometry, practical mathematics and their applications were taught.

Music, which was influenced by both ancient greek and roman music and by the chanting of the Jews, was a field that experienced particular development during the byzantine period. It was originally coded with a limited expressive system, which later evolved in Alexandria, Antioch and Ephesus. The first symbols indicating melodic variations appeared in the 9th century. Our knowledge of the music of earlier periods derives mainly from the typica of monasteries, as well as texts of the Church Fathers. Accordingly, the first melodies were probably syllabic (one note corresponds to one syllable). At the end of the 9th century Byzantine music becomes orchestrated and acquires a new style (one syllable of text spans multiple notes), and ceases to be monaural. Musical manuscripts containing collections of church hymns and melodies together with the poems written in honor of the emperor preserve the musical production of Byzantium. Treatises on the theory and notation of music, descriptions of religious ceremonies and secular celebrations, where hymns and psalms were chanted and instrumental music was played, also survived from the period in question.


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Basil the Great: also known as Saint Basil. He was one of the Church Fathers, bishop of Caesarea, a leading theologian of the 4th century and one of the Three Hierarch, patrons of education.
The city: Constantinople, the capital city of the Byzantine Empire, was built on the site of the ancient Greek colony of Byzantium, on the triangular peninsula formed by the Golden Horn, the Bosporus and the Sea of Marmara. This was an excellent location that controlled trade routes linking the Aegean to the Black Sea. Emperor Constantine founded Constantinople in 330 AD as a city to rival Rome in splendour, wealth and power. The city grew fast, leading to problems of space and facilities, so Theodosius I extended it to the west by building new strong walls that protected Constantinople until the end of the Byzantine Empire. The city was laid out after Rome. A main road, the Mese Odos, linked the palace to the Golden Gate. On this road was the Forum, a circular plaza with a statue of Constantine mounted on a column, surrounded by public buildings. Theodosius I and Arcadius later built more forums decorated with their own statues. Following the Nika riots in the 6th century, Justinian adorned Constantinople with magnificent edifices, palaces, baths and public buildings. This time also saw the construction of Agia Sophia (the Holy Wisdom), the church which served as the seat of the Ecumenical Patriarchate throughout the Byzantine period. During the 7th and 8th centuries Constantinople faced major problems that threw it into disarray: attacks by the Avars (a siege in 674) and Arabs (attacks in 674 and 717-718); natural disasters (a powerful, destructive earthquake in 740); and epidemics (plague in 747). Limited building activity resumed in the 8th and 9th century, mainly concentrated on strengthening the city's fortifications. With the recovery of the Byzantine Empire from the 9th to the 11th century, Constantinople became the most populated city in Christendom; the majority of inhabitants were Greek-speaking, but many other ethnic groups lived alongside them, such as Jews, Armenians, Russians, Italians merchants, Arabs and mercenaries from Western Europe and Scandinavia. Many public, private and church-owned buildings were erected at the time, with an emphasis on establishing charitable institutions such as hospitals, nursing homes, orphanages and schools. Higher education flourished, thanks to the care of the state and the emergence of important scholars. This renaissance lasted until the mid-11th century, when economic problems due to poor management set in, compounded by the adverse outcome of imperial operations beyond the borders. The Crusaders left Constantinople entirely unscathed when first passing through, but in the Fourth Crusade of 1204 the Franks conquered and ransacked the city, slaughtering those inhabitants they did not take prisoner or drive out. In 1261 the city was retaken by Michael VIII Palaeologus, who rebuilt most of the monuments and the walls but proved unable to restore the city to its former splendour and glory. Enfeebled as it was, the empire was incapable of checking the advance of the Ottomans, and in 1453 Constantinople finally fell into their hands. The fall signalled the end of the empire. Nevertheless, the Byzantine intellectual tradition remained significant, as many scholars settled in the Venetian dominions of Crete and the Peloponnese, as well as in European countries, conveying Greek learning to the West.


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