💡 Inventions, discoveries and world science
Inventions and discoveries in four ages — ancient, medieval, modern and contemporary — from the wheel, writing and Bharat’s zero to printing, the microscope, the aeroplane, the Moon landings and UPI, with India’s own inventions alongside the world’s.
Maps show India’s boundaries as officially depicted by the Government of India. Pins mark approximate locations.
⚙ The ancient world (to c. 500 CE)
The wheel and writing, paper and the compass — and Bharat’s weights, digits and rust-free iron.
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3600 BCE
The wheel
The potter’s wheel and the wheel for transport were in use in West Asia.
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3200 BCE
Writing
Writing began in Mesopotamia, pressed as wedge-shaped (cuneiform) signs into wet clay.
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Harappan times
Harappan weights
The Harappans used standard weights: the smaller ones followed a binary series (1, 2, 4, 8, 16, 32) and the larger a decimal one (160, 200, 320, 640).
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118 CE
Paper
Paper was invented in China.
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132 CE
The first seismograph
The first seismograph was developed in China.
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c. 3rd century CE
Ten digits and zero — the Bakhshali manuscript
The first known instance of numbers written with ten digits, including 0 (then written as a dot), is in the Bakhshali manuscript.
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270 CE
The magnetic compass
The magnetic compass was in use in China.
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Gupta age
The Iron Pillar of Delhi
Over 1,600 years old, about 8 metres high and more than 6,000 kg, it still stands without rusting.
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499 CE
Aryabhata computes with ten digits
Aryabhata was the first mathematician to fully explain, and compute with, the Indian system of ten symbols; he also first proposed a systematic way to solve problems with one unknown.
📜 The medieval world (c. 500–1500)
Rules for zero, numerals that travelled west, printing and paper money, and calculus in Kerala.
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Born 598 CE
Brahmagupta: rules for zero
Born at Bhillamala, Brahmagupta gave the rules of arithmetic with zero, negative numbers and fractions; his works were translated into Persian and later Latin.
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9th century
Indian numerals reach the Arab world
Sanskrit texts of mathematics, astronomy and medicine were translated into Arabic in Baghdad; the Arabs adopted India’s decimal numeral system with the zero.
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868
The first printed book
The first printed book was made in China; paper money and the first recorded fireworks followed there.
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14th century
Madhava and the Kerala School
Madhava made pioneering contributions to calculus, including series expansions for trigonometric functions, founding the Kerala School of Astronomy and Mathematics.
🔬 The modern age (1500–1900)
A new picture of the heavens, the body and life — then wires, light bulbs and film.
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1543
A theory of the solar system
Copernicus put forward his theory about the solar system.
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1590s
The microscope
Zacharias Janssen invented the microscope.
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1628
The circulation of blood
William Harvey showed that blood is pumped through the body by the heart.
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1735
Classifying living things
Carolus Linnaeus invented a taxonomic system to classify plants and animals.
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1823
Braille
Louis Braille developed a system of finger reading.
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1831
Darwin’s voyage
Charles Darwin set out on his voyage to the Pacific and the Galapagos Islands, leading to the theory of evolution.
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1873
Barbed wire
NCERT notes that settlers in the American West felt totally secure only after barbed wire was invented.
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Late 19th century
Telephone, record-player, electric bulb
NCERT’s world timeline lists the invention of the telephone, the record-player and the electric bulb in the Americas.
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1895
The first film
The first film was made, in Europe.
⚛ The contemporary world (1900 to today)
Flight and mass production, atoms and medicines, the code of life, space, the web — and India’s satellites, Moon landing and UPI.
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1903
The aeroplane
The Wright brothers invented the aeroplane.
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1911
Marie Curie: radium and polonium
The Nobel Prize in Chemistry, for discovering the elements radium and polonium.
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1913
The assembly line
Henry Ford began assembly-line production of cars.
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1921
Einstein and the photoelectric effect
The Nobel Prize in Physics, for services to theoretical physics and especially the law of the photoelectric effect.
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1930
C. V. Raman and the Raman effect
The Nobel Prize in Physics, for work on the scattering of light and the discovery of the effect named after him.
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1945
Penicillin
Alexander Fleming, Ernst Chain and Howard Florey shared the Nobel Prize for the discovery of penicillin and its curative effect.
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1957
Sputnik
Russia launched the spacecraft Sputnik.
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1962
The structure of DNA
Crick, Watson and Wilkins shared the Nobel Prize for discoveries about the molecular structure of nucleic acids.
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1969
Humans on the Moon
US astronauts landed on the moon.
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19 April 1975
Aryabhata, India’s first satellite
India’s first satellite, completely designed and fabricated in India.
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1989
The world wide web
The beginning of the world wide web.
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1997
Dolly the sheep
Scientists cloned the sheep Dolly.
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25 August 2016
UPI
The Unified Payments Interface, launched by the National Payments Corporation of India, which the IMF has acknowledged as the world’s largest real-time payment system by transaction volume.
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23 August 2023
Chandrayaan-3
India became the first country to land near the Moon’s south pole; 23 August is now National Space Day.
How we check: every entry is from NCERT, NobelPrize.org, ISRO or PIB; our build fails unless its key phrases are found in the source itself. For India’s contributions, see Science in India, Astronomy in Bharat and Medicine & health in Bharat.