IELTS Academic Reading Practice Test 236

On a January night in 532, a riot tore through Constantinople, the capital of the Byzantine Empire. The violence began at the chariot races, where supporters of two rival teams turned against the authorities, and it ended with much of the city in ruins. Among the buildings destroyed was the cathedral, a wooden-roofed church that had already been rebuilt once after an earlier fire. The emperor, Justinian I, could have restored it as it was. Instead he ordered a church on a scale no one had attempted before, and within weeks of the riot work had begun.

Justinian appointed two men to design the building. Anthemius of Tralles and Isidore of Miletus were not professional architects in the modern sense; they were scholars known chiefly for their work in geometry and mechanics. That background shaped the design. The central problem was how to place a broad circular dome over a square room, and the solution they chose depended on an understanding of how forces travel through stone. The church was completed in less than six years and was dedicated in December 537. Contemporaries were astonished by the speed of the work as much as by its size.

The site already had a long religious history. The first church there was built in the fourth century, and the second, replaced by Justinian's building, was constructed early in the fifth. Archaeologists have found fragments of its façade, including carved reliefs, beneath the present structure.

The earlier church had been a basilica, a long hall with side aisles and a timber roof. Justinian's builders kept the long axis of that plan, with aisles and galleries on either side, but crowned the centre with a dome of brick. The result was a building that looked back to the Christian architecture of the Roman world while also breaking with it.

Materials were gathered from across the empire. White marble came from quarries on the island of Proconnesus in the Sea of Marmara, porphyry from Egypt, and green stone from Thessaly. Some columns were newly carved, but others were taken from older buildings and adapted to their new positions. The interior was covered with sheets of marble cut so that their veins met in symmetrical patterns, a technique that created the impression of whole slabs rather than thin panels. Gold mosaic covered the upper surfaces, and light was an essential part of the design.

The dome rests on four massive piers, and the transition from the square space below to the circular base above is made by four curved triangular sections known as pendentives. These were a decisive development in architecture, because they allowed a round dome to sit securely on a rectangular building. At the base of the dome, a ring of forty windows lets daylight into the interior. From below, the dome appears to float. The effect was deliberate: writers of the period described the building as a place where the divine and the earthly met.

The first dome did not survive. A series of earthquakes in 557 and 558 caused it to collapse, and Justinian commissioned a new one from Isidore the Younger, the nephew of the original architect. The replacement was made taller than the original, which changed the proportions of the interior but improved the way the structure carried its weight. It was completed in 562. More than four centuries later, in 989, another earthquake damaged the dome, and the repair was carried out by an Armenian architect named Trdat. Further damage in 1346 led to repairs that lasted for years.

After the Ottoman conquest of Constantinople in 1453, the church was converted into a mosque. A wooden minaret was added, later replaced by stone towers, and a mihrab was installed to indicate the direction of Mecca. The building's Christian mosaics were covered or plastered over, though not all were destroyed. In the sixteenth century the Ottoman architect Mimar Sinan added buttresses to strengthen the structure against earthquakes, and later sultans made further changes. For nearly five centuries it served as one of the principal mosques of the city.

In the nineteenth century, the building was in poor condition. Between 1847 and 1849 the Swiss-Italian architects Gaspare and Giuseppe Fossati carried out a major restoration for Sultan Abdülmecid. They strengthened the dome, repaired the walls and uncovered some of the mosaics, recording what they found in drawings. The mosaics they uncovered were later covered again, and only some have been visible in recent decades. Their work saved the building from collapse, but it also altered its appearance. Later restorations have tried to distinguish the original fabric from the additions of different periods, a task made difficult by the many layers of repair.

In 1934 the Turkish government declared the building a museum, and it opened in that form the following year. For many visitors it became a symbol of Istanbul's layered past, a place where Christian and Islamic traditions could be seen in the same space. In 2020, after a court decision, it was reconverted into a mosque, though it remains open to visitors outside prayer times. The debate over its use has continued, but the building itself still stands as evidence of what sixth-century engineers could achieve.

Beer was not a luxury in ancient Mesopotamia. It was a staple, consumed daily by people at almost every level of society and counted alongside bread as one of the basic supports of life. The Sumerian word for beer was kaš, written with a sign that resembles a vessel; in Akkadian, the later Semitic language of the region, it was šikaru. Administrative documents from the third millennium BCE record beer in the same breath as grain, oil and cloth. It appears in temple accounts, in lists of workers' rations and in laws regulating taverns. For the historians who study these tablets, beer is one of the clearest windows into the everyday economy of the ancient Near East.

The drink was made from cereals, above all barley, though emmer wheat and other grains were also used. The first step was malting. Grain was soaked in water and left to sprout, which allows enzymes to develop that turn starch into sugar. The sprouted grain was then dried and sometimes roasted, giving the malt a darker colour and a stronger flavour. It was ground and mixed with water. Some texts mention dates or honey, but whether these were regular ingredients or special additions is unclear. The resulting mixture was left to ferment in large jars, where wild yeasts already present in the air and on the grain began the work.

Brewing was often a household activity, and in early periods it seems to have been associated particularly with women. A brewery could be a small room with a few jars, or part of a temple or palace complex where larger quantities were produced. The work required judgement rather than precise measurement: the brewer had to decide when the grain had sprouted enough, when the mash was ready and when fermentation should stop. Because the equipment was simple and the ingredients were cheap, beer could be made almost anywhere. This may explain why it became so deeply embedded in daily life.

The most famous description of the process is a Sumerian poem known as the Hymn to Ninkasi, addressed to the goddess of beer. It dates from around 1800 BCE, though the composition may be older. The hymn describes brewing in poetic language, from the preparation of the grain to the filling of the vessels, and it ends with a blessing on the drink. Modern readers have treated it as a recipe, but that is misleading. It gives an order of events and a sense of the equipment, yet it does not provide quantities, temperatures or timings. It is a religious text, not a manual.

Administrative tablets fill some of the gaps. During the Ur III period, roughly 2100 to 2000 BCE, scribes recorded enormous quantities of beer in the accounts of temples and palaces. Workers received beer as part of their rations, sometimes together with bread, onions and oil. The amounts varied according to status and task, and the tablets use standard vessels as units of measure. The Code of Hammurabi, a collection of laws from the eighteenth century BCE, includes rules for tavern keepers, which suggests that beer was sold commercially and that the authorities were concerned about fraud and disorder. Such documents show that beer was not merely a drink but a form of payment, a temple offering and a taxable product.

Beer was also used in religious ceremonies. Offerings of beer were made to temples, and the drink appears in lists of goods supplied for festivals. Because it was both ordinary and valued, it could serve as a gift to the gods as well as to human guests.

People drank beer through long reed straws from a shared vessel. The straws filtered out the solid matter that remained in the liquid, for Mesopotamian beer was thick and cloudy rather than clear. Drinking through a straw may also have made it easier to consume quickly in a hot climate. Banquet scenes on cylinder seals show people sitting in rows with straws in their hands, and the image became a standard way of representing celebration. The vessels themselves were often large and heavy, and the sharing of a jar had a social meaning that is difficult to recover from the objects alone.

Archaeologists have looked for beer in the remains of pottery and equipment. Residues can sometimes be identified by chemical signatures, such as calcium oxalate, a mineral that forms in brewing vessels, but such evidence is rarely conclusive on its own. A jar might have held beer, wine, vinegar or a mixture of products. Experimental archaeologists have therefore tried to brew beer using only the methods and materials suggested by the texts and the surviving equipment. These experiments cannot prove what ancient brewers did, but they show what was possible and help researchers to interpret the traces they find.

The limits of the evidence are considerable. No Mesopotamian recipe gives exact proportions, and the strength of the beer is unknown. Some scholars have argued that bappir, a type of cereal cake mentioned in the texts, was a brewing ingredient; others think it was simply a form of bread, perhaps eaten with beer rather than used to make it. The debate matters because it changes how we picture the relationship between brewing and baking. What is clear is that beer was central to the economy and to social life. It was a food, a wage and a gift to the gods, and its production occupied a place in ancient society that modern drinkers might find surprising.

Every year, millions of people travel to see places that are, by their nature, vulnerable. Prehistoric caves, ancient wall paintings, fragile mosaics and carved rock faces can be damaged by the moisture in a visitor's breath. The dilemma is familiar. If a site is opened to the public, it may be destroyed; if it is closed, it loses the public support that often pays for its protection. In recent decades, one answer has become common: build a replica nearby, let visitors see that instead, and keep the original sealed. The question is whether a copy can ever be a satisfactory substitute for the thing itself.

The most celebrated examples come from France. The cave of Lascaux was closed to the public in 1963, fifteen years after it had been opened, when algae and crystals began to appear on the walls. A replica, Lascaux II, opened nearby in 1983, and a more ambitious centre, Lascaux IV, followed in 2016.

The Chauvet cave, whose paintings are older still, was never opened to general visitors; instead a replica called the Caverne du Pont-d'Arc opened in 2015. In Spain, replicas of the paintings at Altamira allow visitors to see the images without entering the original cave. These projects are expensive, but they have kept the originals free from the pressure of mass tourism.

For those who manage such sites, the advantages are obvious. A replica can be built with accessible entrances, lighting and space for large groups, none of which is possible in a narrow prehistoric cave. Visitors can be shown how the paintings might have looked by firelight, or how the marks were made, in ways that would be impossible in the original. The copy also protects the original from accidental damage and from the cumulative effects of thousands of footsteps and exhalations. In some cases, the revenue from the replica helps to fund conservation of the real site.

Critics reply that a replica is not a substitute but a different kind of object. The original cave is not simply a set of images; it is a place with a particular temperature, smell, acoustic and setting. Its paintings were made on a surface shaped by thousands of years of geological change. A copy, however carefully made, is a modern construction. Some art historians argue that standing in a replica is closer to visiting a museum display than to encountering the past. They do not deny the need to protect the original, but they resist the idea that the copy can replace it.

There is also a question of authenticity. A replica presented as a replica is honest; a replica presented as the real thing is a form of deception. Most of the major projects are careful to explain what they are. At Lascaux IV, visitors are told from the beginning that they are looking at a copy, and the centre includes displays on the conservation of the original. This transparency matters. The danger arises when replicas are used to justify neglect of the original, or when the copy becomes a theme-park attraction that treats the past as entertainment.

Access is another consideration. Replicas are often built at the foot of the original site, which means that visitors still have to travel there. That benefits local hotels and restaurants, but it does not help the many people who cannot afford to visit France or Spain at all. Digital replicas, including three-dimensional scans that can be viewed online, reach a far larger audience. Archivists who produce such records argue that online models can reach people who cannot travel. They cannot reproduce the physical experience of a cave, but they can allow students and researchers to examine details that are invisible to the naked eye.

The strongest argument for replicas is simple: the original cannot speak to anyone if it has been destroyed. Conservation is not a matter of locking a site away and forgetting it. Wall paintings fade, rock surfaces crumble and groundwater moves. A replica is a form of insurance. It preserves a record of what the site looked like at a particular moment, and it allows future generations to understand what was lost if the worst happens. This is not a reason to stop protecting the original, but it is a reason to treat copies as part of a responsible strategy rather than a betrayal of authenticity.

Yet the language of 'substitute' is misleading. A replica does not replace the original; it stands beside it. The original remains the primary evidence, the thing that scientists can analyse and that carries the accumulated meaning of its age. The copy has a different role: it teaches, it protects and it widens access. Once that distinction is clear, many of the objections lose their force. What is unacceptable is not the existence of replicas but the use of replicas as an excuse for allowing the original to decay.

My view is that replicas are valuable tools, not substitutes. They should be clearly labelled, well made and paid for by the institutions that benefit from them. Their first purpose should be to protect the original, their second to explain it. A visitor who leaves a replica understanding more about the real site, and more determined that it should survive, has gained something worthwhile. The copy is not the cave. But it can be a way of keeping the cave alive in public memory, and that is a goal worth the expense.