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Page 31

Q0808

WonderHistory

Mansa Musa, the 14th-century ruler of Mali, was so wealthy that accounts say his gold spending affected economies along his pilgrimage route.

Mansa Musa's famous 14th-century pilgrimage to Mecca carried the gold-rich power of Mali into the awareness of the wider Afro-Eurasian world, and accounts of his lavish giving fixed him in memory as an extraordinary ruler. The exact figures are debated, so the honest takeaway is scale, not fable: wealth becomes history when it changes what other societies notice.

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Q0809

WonderHistory

The Black Death killed an estimated third or more of Europe's population in the 1300s, reshaping labour, religion and social order.

The Black Death was not only a medical catastrophe: with so many dead, farms, wages, families, towns and even religious expectations shifted, and its effects reached far beyond Europe through trade routes. Population loss changes not just grief, but power, work and belief.

HistoryRead card

Q0810

WonderHistory

Contrary to legend, the Great Wall of China cannot be seen from space with the naked eye under ordinary viewing conditions.

The wall is long, but it is also narrow and often close in colour to the surrounding land. From orbit, visibility depends on conditions and magnification, not just fame. This matters because scale on a map does not equal visibility to the eye. The lesson is useful everywhere: a repeated fact can feel true before it is checked.

HistoryRead card

Q0812

WonderHistory

Gutenberg's movable-type printing press, around 1440, made books and pamphlets easier to reproduce and helped ideas spread at scale.

Before printing, manuscripts were slow and costly to copy. Movable type produced texts far faster, feeding literacy, religion, science and politics across Europe and beyond — a reminder that a change in how information spreads can rearrange power itself.

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Q0813

WonderHistory

In 1630s Holland, tulip-bulb prices soared before crashing — a famous early story of speculative fever.

Tulip mania is real but often exaggerated in later retellings. Rare bulbs became objects of status and speculation, contracts changed hands at astonishing prices, and the crash became a lasting parable about markets and desire.

HistoryRead card

Q0814

DriveHistory

The Wright brothers' first powered flight in 1903 lasted about 12 seconds and covered around 37 metres (120 feet).

The first flight at Kitty Hawk was short enough to fit inside a modern airport runway many times over. Its importance was control: the Wrights were not merely leaving the ground, but learning how a powered aircraft could be steered.

HistoryRead card

Q0815

WonderHistory

New Zealand became the first self-governing country to grant women the vote, in 1893.

New Zealand's 1893 Electoral Act followed years of organising by suffragists, including Kate Sheppard and the Women's Christian Temperance Union. It did not make equality complete, but it changed what democratic citizenship could mean.

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Q0816

WonderHistory

The Mongol Empire under Genghis Khan and his heirs became the largest contiguous land empire in history.

The Mongol Empire expanded with extraordinary speed in the 13th century, linking steppe, city and trade routes under one imperial system. Its violence was immense, but so was its effect on exchange across Eurasia.

HistoryRead card

Q0817

WonderHistory

France used the guillotine for executions into the late 20th century, with the last execution by guillotine in 1977.

The guillotine is usually pictured as revolutionary-era history, yet France used it into 1977 — a date that overlaps with colour television, jet travel and personal computers. Institutions can carry old violence deep into modern life; history's edge is nearer than memory admits.

HistoryRead card

Q0818

WonderHistory

In 1215, Magna Carta helped establish that even a king could be bound by law, a seed for later constitutional limits on power.

Magna Carta began not as a democratic manifesto but as a settlement between King John and rebellious barons. Its larger legacy came later: the idea that even a ruler is not entirely above the law — a project that legal traditions are still arguing over today. Limiting power is a long project, not a single document.

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Q0819

WonderHistory

Archaeologists have found ancient Egyptian honey that remained preserved because honey's chemistry resists many microbes.

Honey is low in water, acidic and rich in sugars, making it difficult for many microbes to grow when sealed well. That is why ancient honey can remain recognisable long after other foods decay. This matters beyond trivia because preservation is chemistry, not magic. The lesson: ordinary sweetness can hide powerful design.

HistoryRead card

Q0820

WonderHistory

The ancient Library of Alexandria sought to collect copies of all the world's knowledge.

Founded under the Ptolemies in the 3rd century BC, the Library of Alexandria aimed to gather a copy of every book in the known world; ships entering the harbour reportedly had to surrender their scrolls to be copied. Its loss was not one dramatic fire but a slow decline over centuries — through war, funding cuts and neglect — which is its quieter warning.

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Q0821

WonderHistory

The Berlin Wall opened on 9 November 1989 after a confused announcement sent crowds to the checkpoints.

East Germany announced new travel rules badly, and when people heard they could cross, crowds gathered at border points. Guards eventually opened the gates. The event mattered globally because a concrete wall had become a symbol of the Cold War divide. The lesson is that systems can look permanent until a mistake reveals their weakness.

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Q0822

WonderHistory

Cleopatra VII descended from a Greek (Macedonian) dynasty and was famed for her intellect and languages.

Cleopatra belonged to the Ptolemaic dynasty, founded by a Macedonian general after Alexander the Great. Ancient writers emphasise her education, political intelligence and languages; her story is far larger than the later romance myth.

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Q0823

WonderHistory

The original Olympic Games were held in ancient Greece, traditionally from 776 BC.

The traditional date for the first recorded Olympic Games is 776 BC at Olympia. The games honoured Zeus and drew Greek athletes into a shared religious and athletic festival, supported by truces that helped competitors travel safely.

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Q0824

WonderHistory

The fall of Constantinople in 1453 marked the end of the Byzantine (Eastern Roman) Empire.

When Mehmed II captured Constantinople in 1453, the last remnant of the Eastern Roman Empire ended. Historians often use the fall as a symbolic marker near the end of the Middle Ages, though no age truly closes in a single day.

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Q0826

WonderHistory

The Code of Hammurabi, from ancient Babylon, is one of the earliest known written law codes.

Carved onto a two-metre (6.6-foot) stone pillar around 1750 BC, the Code of Hammurabi set out some 282 laws — including the famous principle of 'an eye for an eye'. Placed in public for all to see, it was among the first attempts to make justice a written, predictable thing rather than a ruler's whim.

HistoryRead card

Q0827

WonderScience

Light travels about 299,792 kilometres (186,282 miles) every second.

In a vacuum, light moves at 299,792,458 metres per second, the universal speed limit used in modern physics. The number is so large that everyday intuition fails: the Moon is only about 1.3 light-seconds away.

PhysicsRead card

Q0828

WonderScience

A light-year is how far light travels in a year — a distance, not a length of time.

A light-year is a distance, not a time — about 9.5 trillion kilometres (5.9 trillion miles), the span light crosses in a year. The nearest star beyond the Sun, Proxima Centauri, is over four light-years away, meaning its light reaches us having left before you were likely born.

AstronomyRead card

Q0829

WonderScience

Atoms are almost entirely empty space, with a tiny nucleus at the centre and electrons spread through a much larger region.

If an atom were scaled up, its nucleus would be tiny compared with the space occupied by its electron cloud. Yet tables, bones and phones feel solid because electromagnetic forces resist overlap. This matters globally because everyday reality is built from invisible structure. The so-what: what feels simple to touch can be strange underneath.

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Q0830

WonderScience

A tablespoon of neutron-star material would weigh around a billion tons.

A neutron star is the collapsed core left after some massive stars explode. Its matter is compressed to almost unimaginable density: a city-sized object can contain more mass than the Sun, so 'a tablespoon' becomes a way to feel the scale.

AstrophysicsRead card

Q0833

WonderScience

The Sun holds about 99.8% of all the mass in the solar system.

The Sun contains about 99.8% of all the mass in the solar system; everything else — all the planets, moons, asteroids and comets — shares the remaining fraction, and Jupiter alone takes most of that. In truth, the planets are little more than leftovers orbiting one overwhelming star.

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Q0834

WonderScience

Pi is irrational, meaning its decimal expansion goes on forever without settling into a repeating pattern.

Pi links a circle's circumference to its diameter, yet that familiar ratio cannot be written as a neat fraction. Its digits continue without a repeating block, which makes it both practical and mysterious. This matters across science, engineering and design wherever circles appear. The lesson: even the simplest shapes can contain endless depth.

MathematicsRead card

Q0835

WonderScience

The prime numbers go on forever — there is no largest prime.

Around 300 BC, Euclid proved there is no largest prime with a single elegant argument: assume you had a complete list, multiply them all together and add one, and you always produce a number that no prime on your list can divide. The primes must, therefore, go on forever.

MathematicsRead card