The idea of a canal linking the Mediterranean to the Rea Sea dates back to ancient times.
It was Napoleon’s engineers who, around 1800 AD, revived the idea of a shorter route
to India via the Suez Canal. It was not until 1859 that Egyptian workers started working
on the construction of Canal in conditions, described by historians, as slave labor. The
project was completed around 1867. Although Britain had played no part in building
the Suez Canal in Egypt, it benefited greatly when it opened. The new 190-km-long
waterway shortened the route from Britain to India by around 9,700 km, therby extending
their powers of trading.

In 1870, a movement calling for Home Rule was founded in Ireland. Supporters of Home
Rule wanted a separate parliament to deal with Irish affairs in Dublin. Although the
British government was force to introduce many reforms, two bills to introduce Home
Rule were defeated in parliament in the 1880s and 1980s. William Gladstone was Prime
Minister of Britain four times during the reign of Queen Victoria. He believe that the
Irish should run their own affairs and was a staunch supporter of Home Rule. But he
failed to get his Home Rule Bill approved by parliament. During World War I, the issue
of Home Rule continued to cause conflict in Ireland. The third Home Rule Bill had
been passed by the British parliament in 1914, but the outbreak of war in the same year
delayed the start. Irish protestants, however, were bitterly opposed to Home Rule. They
were in the majority in the northern province of Ulster, and believed that they would
be treated unfairly by a Dublin parliament. They formed the Ulster Volunteer Force to
protect themselves if Home Rule was introduced.

The 1860s was a time of uncertainty and political unrest in Japan. Finally, in 1868, the
situation became so serious that Emperor Mutsuhito took control from the last shogun
(military dictator). Mutsuhito became known as the Meiji emperor, and this event is
called the ‘Meiji restoration’. Under the emperor’s authority, Japan embarked on a
programmed of modernization. In 1872, a group of Japanese politicians went on a tour
of Europe and North America to learn more about industry, education and ways of life
in the West. As a result, factories were built in Japan and the country started to change
from an agricultural to an industrialized nation. This also included the establishment of
a national railway system. During the period of Meiji rule, education was introduced for
all Japanese people. The Meiji emperor also gave farmers ownership of their lands and
changed Japan’s army and navy into modern military forces.

Britain had started her collection of overseas colonies in the reign of Elizabeth I. by 1602,
both England and the Netherlands had founded an ‘East India Company’ on the Indian
coast to trade with the Far East. The first settlements in North America took root and
flourished in early Stuart times. In 1661, Britain gained her first African foothold, seizing
James Island on the Gambia River. By the middle of the 1700s, these scattered colonies
had begun to grow into a powerful and profitable empire. By the 1750s the British navy
ruled the waves. By 1763 Britain had won most of France’s territory in North America.
The map above shows the extend of the empire in 1821.

One of the biggest changes in the history of the world, the Industrial Revolution, started
in Britain was the first home of new machines, new types of materials and new ways of
making power. This was the age of coal and iron, of gas and electricity, of railways and
factories. These factories created millions of new jobs, so many people began to leave
the countryside to work in towns. Houses and factories had to be built for them, By 1850,
over 60 per cent of Britons lived, often working 14 hours a day, six days a week.

From 1492 onwards, European explores sailed across the Atlantic to what they called the
New World of North, Central and South America. There they discovered a treasure trove
of gold and silver. They also found foods that only grew in the New World, such as sweet
corn, potatoes and plants that could be made into medicines. The people that settled in the
New World were traders rather than soldiers. Their first contact with the people already
living there was friendly. The Native Americans showed the newcomers how to hunt, fish
and farm in a land of plenty. In return they were given objects such as knives, needles,
fish hooks and cloth.

We know very little about the early history of Africa. There must have been great
civilizations there, but very few of them developed writing or left any records. Some
civilization built fine communities, such as the east coast port of Kilwa or the mysterious
stone complex of Great Zimbabwe. After about AD 700, Muslims from the Near East
began to take over many coastal regions and trade routes. One of the wealthiest of
the medieval African empires was Mali. Starting in 1240, its Islamic rulers built up a
kingdom stretching for around 1,600 km over West Africa. Much of the land was desert,
but Mali grew rich from gold.

The bubonic plague (or ‘Black Death’) was a disease which brought death to most parts
of Asia, North Africa and Europe. The first outbreak was recorded in 1331 in China. The
plague started as a bloody swelling in the armpit or groin and quickly invaded the whole
body. It was highly contagious and killed millions of people. The infection probably
began on the steppes, the grassy plains of Asia. IT was carried by fleas which lived in
the fur of the rat. The rats lived closed to humans and thus the disease spread rapidly.
Corpses were left out in the road for people to collect, thus causing the disease to spread
even further.

 The youngest son of Henry II, John, inherited from his brother Richard the throne of
England, as well as the Plantagenet dominions of France, which he had lost to the French
by 1204. John’s failure to recapture these territories, his dispute with Rome over the
Pope’s choice of a new Archbishop of Canterbury, and a high level of taxation, had the
English nobility up in arms against him. In 1215 they forced the King to agree to the
Magna Carta, guaranteeing their rights in relation to those of the crown. It was intended
to protect the rights of nobles, and made sure that no-one was imprisoned without a fair
trial. Copies of this document, which tried to put an end to the king’s abuse of his power,
were distributed across the whole of England. This led to civil war, which only ended
with John’s death in 1216, Despite all these disasters, it is now known that John was
much better king than history has actually portrayed him.

The Byzantine emperor, a Christian monarch who lived in Constantinople, needed help.
He turned to the pope, who in 1095 called for all Christians to start a holy war against the
Suljuk Turks. Thousands rushed to join the Crusader armies. They crossed into Palentine
and recaptured the important cities of Nicaea and Antioch. Jerusalem fell in 1099 after a
desperate siege lasting six weeks, and the Crusaders took terrible revenge by slaughtering
thousands of Muslims. There were to be three more crusades: one in 1144, the second
in 1187 and finally the Children’s Crusade in 1212. Fifty thousand children set off from
France and Germany for the Holy Land. Many died on the journey, many more were
captured and sold as slaves in Africa.

Traditionally, glue is made from boiling up the bones, skins and other parts of animals such as fish
or horses in order to extract the gelatin, which is then purified and concentrated to make a sticky
substance that will form a bond as it dries. There are now many different types of glues, made from
plant material or minerals such as petrol, as well as different kinds of synthetic glues. One of the
simplest glues is flour-and-water paste and traditional wallpaper paste is made with starch. Latex
adhesives were originally made from the latex extracted from rubber trees, but synthetic forms are
now also available. Another type of synthetic glue is epoxy resin, in which the user mixes an adhesive
substance with equal quantities of a hardener. The two substances react chemically together, causing
the adhesive to set rapidly. Glues are widely used in many industries, such as furniture-making and food-
packaging.

There are a few factors that govern how valuable a stamp is to stamp collectors: the most important
is how rare it is. Obviously, very old stamps are uncommon so these, such as the ‘Penney Black’ very
seldom come up for sale and so are unbelievably expensive. Other things that might make a stamp rare
might be where a mistake was made in the printing and the stamp was withdrawn after only a few had
been sold. Undamaged stamps are more valuable than similar ones that have been damaged.

A cloud is made up mainly of water. When hot air rises from the land or the sea, it carries water vapour
with it. Because the atmosphere usually gets colder with height, and cold air can hold less vapour
than warm air, the vapor eventually condenses in the form of water droplets or ice crystals around
particles of dust to form a cloud. If it continues to cool further, the cloud will become denser until the
atmosphere is no longer able to hold the moisture and rain, hail or snow will fall. The general rule is that
the deeper a cloud is relative to the deeper a cloud is relative to the height of its base above the sea or
ground, the more heavily it will rain, hail or snow, so thin, high clouds produce no rain, while thunder
storms produce a great deal.

It would be easy to think that a duck’s feathers would soon become waterlogged so that it would sink,
but in fact, ducks, geese and swans, as well as seabirds, have waterproof feathers, which enable them
to swim and dive beneath the surface of the water. Ducks create this waterproofing using the oil from
the preen gland, near the base of the tail, which they spread through their feathers and the underlying
dense layer of down with their bills. A layer of fat under their breast skin also helps to keep them
buoyant. Different ducks feed in different ways, some dive, some upend and feed from the bottom of
the lake or river while others ‘dabbles’, stirring up the water with their feet to find food.

Dinosaurs lived for an enormously long time-some 150 million years – before they died out about
64 million years ago. All the dinosaurs disappeared at about the same time. However, whether
this happened over a few days, a few years, one or two centuries, or even a few thousand years is
impossible to say. Many people believe that the dinosaurs became extinct as a result of climate change
after a huge meteor or a small asteroid struck the Earth. The extinction of the dinosaurs was not an
isolated event. At the same time most marine reptiles and pterosaurs also died out.

Several families of birds can be trained to ‘talk’, but in reality they are simply mimicking noises without
really understanding what they are saying, although they can be taught to associate a given word or
phrase with a given action, for example saying ‘give us a peanut’ to get a reward. The best talkers are
parrots and mynas, and members of the crow family such as crows, jackdaws and ravens can also learn a
few simple words. They can do this because the are highly intelligent birds and they are excellent mimics
in the wild. Other bird mimics that do not pick up speech are starlings and some of the bowerbirds in
Australia, including on individual that had learned to copy the noise of the logging machines that were
destroying his habitat.

Construction of the famous white marble bell tower (campanile) of Pisa’s cathedral began in 1173 but by
the time three stories were built, it had already begun to lean. Over the centuries, many methods have
been tried to prevent the lean getting worse but as most people did not understand what was causing
the lean, they made it worse. The soil under the tower is very soft and waterlogged in parts, which is the
most plausible explanation for the lean. In 1990, the tower was closed to the public because cracks in
the walls were worsening and it was feared that it might topple over. Since then, straps and cables have
been used to hold it in place, 800 tonnes of lead weights have been added to the high side of the base
and 38 cubic metres of soil removed from that area, which has stabilized the tower, and even reduced
the lean slightly.

The simplest way to describe an optical illusion is that it is a ‘trick’ that our eyes play on us. We seem to
see something that isn’t really so. Or we may be able to see the same object in two completely different
ways. If our eyes are working properly, and they are instructions for seeing exactly what is before
us, how can they play such tricks on us? This is because vision is not a physical process. It is not like
photography, for instance, which work mechanically. Vision is really a psychological experience, because
it is not the eyes that see, but our brain.

We all dream at night, although we may not remember our dreams in the morning. Although scientists
do not precisely understand how we dream, they have discovered that it is important for us to do so
and people who are prevented from dreaming soon begin to feel unhappy. We are deeply asleep when
we dream, but our brains are active. Scientists think that our brains may be working though the events
of the day, storing memories, making sense of our emotions and preparing us for the next day, Dreams
are often unrealistic or even weird, putting us in odd situations. Bad dreams, called nightmares, may be
particularly vivid and we may be more likely to remember flashes from them because the emotions the
created were so strong that they made us wake up.

If this question had a simple answer, such as a formula that could be learned, you can be sure that every
comedian would know it! But laughter is a complicated things, and the best explanations of it are still
only theories. We know, of course, that laughter is an expression of many feelings and that laughter is
only found among human beings. It is difficult to decide what really makes people laugh, because each
person will find a different thing funny. It is all down to being individuals. From the physical point of
view, laughter is very good for us. It is good for our lungs, and it is an outlet for some extra energy. So
although no one really knows what makes people laugh, or what the purpose of laughter is, it is a very
good medicine and certainly makes us feel better.

Early man had to rely on his own muscle-power to carry objects, but over thousands of years tamed
animals, such as horses, oxen and donkeys, elephants and camels. In order to be able to transport more
goods than an animal could carry on its back, sledges and hurdles that could be pulled behind the animal
were eventually invented, as well as such instruments as ploughs to make agriculture easier. Where
sledges were not suitable, such as on rough ground or sand, the could roll heavy objects along on top
of logs, continually taken from behind the object as it passed and placed in front of it. It is thought that
stones for both the pyramids and Stonehenge may have been moved using this technique. Eventually,
someone realized that attaching the logs, or sections of log, to the object would be more efficient and

There are more than 150 species of octopus, ranging from the very small to the giant octopus, which
may reach 33ft (10m) in length. Most of them eat crabs, fish, crustaceans and smaller mollusks, which
they catch and tear apart with their suckered tentacles. An octopus’ mouth is shaped like a parrot’s
beak, with two very strong jaws. In addition the octopus can inject venom or poison with its bite,
which enables it to disable prey that might fight back, such as crabs, more quickly. Octopses are very
intelligent, curious animals, with a highly developed nervous system and extremely good eyesight.
They propel themselves through the ocean by squirting water from the edge of their mantle. They are opportunistic feeders , which means that they will tackle almost anything when they are hungry!

Pearls, whether natural or cultured, are made in the bodies of some species of oysters and are
composed of the same material as the iridescent mother of pearl that lines oysters’ shells, which is a
form of calcium carbonate. If something, such as a grain of sand, gets into an oyster’s shell, it will not be
able to expel it and instead coats it with layers of mother of pearl, creating a spherical pearl. Because
natural pearls are rare, people make cultured ones by inserting a grain of sand into oysters in order to
force them to create pearls, which are harvested after two or three years. These are usually lower in
quality than natural pearls and often not perfectly spherical. Because of this, and because they are less
rare than natural pearls, cultured ones are less expensive to buy.

Jazz is a form of music that originated in southern UNITED States in the late 19 th century, as a
development of the songs and spirituals of Afro-American slaves, with melodies that incorporate both
African and European music , It is a strongly rhythmic form of music, incorporating elements of ragtime,
the blues and folk music. One popular early form came from New Orleans and was sometimes called
Dixieland jazz, which could be deeply emotional. In improvised (or improve.) jazz, the players make the
music up as they go along. Jazz is also renowned for long soloes by players such as clarinetists and
saxophonists. Jazz led to the development of swing in the 1920s, the ‘big band’ sound of the 1940s
onwards and later forms including fusions with other types of music, such as funk, and free jazz.

According to an ancient Greek myth, the god Pan invented the first musical instrument – the pipes that
are named after him – after he accidentally breathed heavily through old reeds beside a river and
produce a wail. He so liked the sound that he broke the reeds off and tied them together. Because the
reeds were different lengths they produce different notes. Although this is a myth, not reality, it shows
that most early musical instruments may have been made because someone noticed a natural effect
and decided to make use of it. The first instruments were probably drums, made of hollow logs, and
sticks that were hit together to provide a beat for dancing. Animal horns were later used to make simple
wind instruments and early stringed instruments include the lyre, in which strings are strung from a
simple frame and plucked.

The ability to make a ball swerve through the air rather than follow a straight line is a valuable one in
many sports, whether as a pitcher in baseball, a spin bowler in cricket or a footballer taking a penalty.
The curve occurs because of the ‘Bernoulli effect’, which was discovered by scientist Daniel Bernoulli.
When the player wants to make the ball follow a curve through the air, he makes it spin as it leaves his
hand or foot. As it spins, air is pulled with it through friction, and this works together with the current
created by its motion trough the air. On one side of the ball, the air passing it and the air spinning
around it go in the same direction, allowing it to move faster, while on the other side of the ball, the air
spinning around it is in the opposite direction to the air current passing the ball, which slows it down
and makes it curve.

Stars and Stripes - also called ‘Old Glory’, or ‘Star-spangled Banner’, is the flag of the United States of
America. It consist of white stars (50 from July 4, 1960) on a blue background, with a field of 13 alternate
stripes, 7 red and 6 white. The 50 stars stand for the 50 states of the Union, and the 13 stripes stand for
the original 13 states that signed the Declaration of Independence. After the beginning of the American
Revolution, the first unofficial national flag – known variously as the Grand Union Flag, the Great Union
Flag, or the Cambridge Flag – was hoisted outside Boston, on January 1, 1776, It was hoisted, it appears,
at the behest of General George Washington, whose headquarters were nearby, The flag had seven
red and six white horizontal stripes and, in the background, the British Union Flag (the immediate
predecessor of Union Jack).

The sundial was one of the earliest devices for measuring time. But it can work only on a day with
plenty of sunlight. Early peoples also used ropes with knots tied at regular intervals. In the ninth century
candles were marked with regularly spaced lines, but this was not very accurate as a draught could
cause the candle to burn more quickly. When burned, such devices measured time. An hourglass or
sandglass tells time by means of sand trickling through a narrow opening. A water clock, clepsydra,
measures time by allowing water to drip slowly from one marked container into another. By the 1700s,
people had developed clocks and watches that told time to the minute. Modern electronic and atomic
clocks can measure time with far greater accuracy.

If we think about different types of clocks and watches, we associate some of them with different
countries: grandfather clocks and marine chronometers from England, cuckoo clocks from both
Germany and Switzerland, precision-engineered jeweled watches from Switzerland, too, and digital
watches from countries in south-east Asia such as Japan. Watches are very important to the Swiss
economy as these expensive items are sold all over the world.

Scorpion are distant relatives of spider, but while spiders bite, scorpion carry their venom in poison glands near the stinger that they carry at the tip of the tail. Many scorpions live in arid areas, such as deserts, where they will shelter from the heat of the day under stones or in the burrow of another animal, and hunt insects at night. Other species live in jungles and shelter under bark during the day. When a scorpion spots prey, it raises its tail ready to strike, and once it has caught its victim paralyses or kills it by stinging it. A scorpion will also raise its tail as a display when it meets anything that it sees as a threat, such as a meerkat or a large

Erosion constantly wears away solid rock through the action of rain, snow and waves, frost and ice, glaciers and wind and the bits broken off are slowly broken down into ever-smaller pieces. The most common mineral found in sand is quartz but  other mineral, such as calcite, feldspar and mica are also present. The colour of sand on a beach reflects the material from which it is made: in Hawaii sands from volcanic rocks are black

Mussels are molluscs and are related to water snails. Because their shells are divided into two halves, they are called bivaldes. The shell protects the soft body of the animal. A powerful foot enables the animal to

Parasites are animals that live at the expense of other animals. They rob the host animal of nourishment and often cause it to become sick. However, in other types of relationships, different animals can help one another.

A marsupial is a mammal whose young are born in an extremely immature state. The newborn undergoes most of its development attached to one of its mother's nipples and nourished by her milk. Females of most

There is more than one gene for eye pigment, as shown in the illustration below, but brown is always dominant over blue. Two people, one with two genes for brown eyes, the other with two  genes for blue

The most powerful ruler among the English kings was acknowledged as 'bretwalda', or supreme king. The Sutton Hoo ship burial site in Suffolk was discovered in AD 1939. It is almost certainly the monument to

A desert landscape includes various kinds of surface features created by water and air erosion and by deposits of silt, sand, and other sediments. The drainage system is made up of normally dry streams called arroyos.

Trenches are the deepest parts of the ocean. Many renches occur in the Pacific Ocean, especialy its in wesstern portion. Most trenches are long, narrow, and deep, 2 to 2.5 miles (3 to 4 km) below the the surrounding sea floor. The greaest depth anywhere in the ocean is found in the Mariana Trench southeast of Japan. It pluges more than 6.8 miles (11km) below sea level. Frequent earthquakes and volcanic eruptions occur along the trenches.

For early peoples, the only changes that were truly regular, were the motion of the objects in the sky. The obvious of these changes was the alternate daylight and darkness, caused by the rising  and setting of the sun. Each of these cycles of the sun came to be called a day. Another regular change in the sky was the change in the visible shape of the moon . Each cycle of the moon's changing shape takes about 291/2 days, or a month. The cycle of the seasons  gave people and even longer unit of time. There is no longer change in the sky that lasts seven days, to represent the week. The seven-day week jewish custom of observing a sabbath (day of rest) every seventh day. The division of a day into 24 hours , an hour into 60 minutes, and a minute into 60 seconds probably came from ancient babylonians.

The pacific ocean, the largest and deepest of the world's four oceans, covers more than a third of the earth's surface and contains more than half of its free water. The floor of the pacific ocean, Which has an average depth of around 14,000 feet (4,300), is largrly a deep-sea plain. The name Pacific, which means peaceful, was given o it by portueguese navigator Ferdinand Magellan in 1520. The pacific is the oldest of the existing ocean basins, its oldest rocks having been dated at 200 million years. The Pacific Ocean is bounded on the east by the north and south American continents; on the north by the Bering strait; on the west by Asia, the Malay Archipelago, and Australia; and on the south by Antartica.

pull on the earth draws the ocean water towards the Moon,

 making the water form a huge swell. This is known as a high tide.

Water closet to the Moon will always be the point of the highest tide.

as the Earth spins around, different oceans become the closet stretch of water

to the moon. This is why all oceans and seas have different points of high

tide at different times of the day or night.

 After insects, molluscs form the largest group of animals. Molluscs have soft, muscular bodies, often covered by a protective shell. Some, such as snails, move on a muscular foot , which can be withdrawn into the shell for protection. Other, sea-dwelling molluscs, such as squid and scallops, take in water and squirt it out to jet-propel themeselves along. Many snails are an important food for fish, birds, and crutaceans , such as crazy fish and lobster. Many people consider the helix garden snail, Which is shown as escargot, a great delicacy.