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50 free Paper trivia questions with answers — technology quiz, new questions added Aug 2026.
Paper trivia is a tour of two thousand years of technology hiding in plain sight. A Han court eunuch named Cai Lun gets the credit in 105 CE, though Chinese fragments are centuries older; from there paper travelled through Samarkand and Baghdad to Spain and Italy, picked up watermarks in Fabriano, met the printing press, and finally switched from rags to wood pulp in the 1840s when two men on two continents had the same idea in the same year. This quiz covers the whole story: papyrus and why it lost, the first paper money and the first toilet paper, the Fourdrinier machine and why the brothers who paid for it went broke, kraft and sulfite pulping, why cheap paper yellows, how A4 is defined by the square root of two, the origins of US Letter, and the lighter side, from origami cranes and the Miura fold to the paper-plane records and the teenager who folded toilet paper twelve times. Easy questions suit anyone who has ever jammed a printer; the expert tier is for papermakers and stationery obsessives. Every answer was checked against Wikipedia's articles on paper, its history and its many offshoots, and the supporting sentence is attached to each question.
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Q 01Which Han dynasty court official is traditionally credited with inventing paper in 105 CE?
Cai Lun
He was a eunuch who improved the process using tree bark, hemp waste, old rags and fishnets; older paper fragments show he refined rather than invented it.
Q 02The word 'paper' derives from the name of which plant-based writing material?
Papyrus
Despite the shared name, the two are separate technologies: papyrus is laminated plant strips, paper is macerated fibre.
Q 03The Egyptian writing material that gave paper its name was made from the pith of what kind of plant?
A wetland sedge
Cyperus papyrus once grew abundantly across the Nile Delta, and Arab attempts to grow it north of Baghdad in the 830s failed.
Q 04Before wood pulp, the most common paper was made from what?
Discarded rags
Ragpickers collected worn-out natural-fibre textiles to feed the mills, and shortages of rags drove the search for alternatives.
Q 05The earliest surviving paper fragment, found at Fangmatan in Gansu, was probably part of what?
A map
It dates from 179–141 BCE, roughly two and a half centuries before Cai Lun.
Q 06Popular history says papermaking reached the Islamic world via Chinese prisoners taken at which 751 CE battle?
Talas
The story comes from an 11th-century Persian historian; paper had in fact been in Central Asia for centuries already.
Q 07Because paper reached the West via one city, it was at first called 'bagdatikos'. Which city?
Baghdad
Paper was being made there by the late 8th century, when the Abbasid vizier ordered it to replace parchment.
Q 08Papermaking was firmly established in Europe by 1150 in which Spanish town?
Xàtiva
From Spain it spread to Amalfi, Fabriano and Treviso in Italy during the 13th century.
Q 09Watermarks were first introduced in 1282 in which Italian papermaking town?
Fabriano
They were made by varying the thickness of the wet sheet; Fabriano papermakers also pioneered sizing paper with animal glue.
Q 10Who set up the first paper mill in England, around 1490 near Hertford?
John Tate
The first commercially successful British mill only came in 1588, when John Spilman opened one near Dartford.
Q 11Under which Chinese dynasty was the world's first known paper money printed?
Song
The notes, known as jiaozi and huizi, were also handed to officials as gifts in special paper envelopes.
Q 12In 589 CE a scholar-official wrote he dared not use paper quoting the Classics for what?
Toilet purposes
Toilet paper was in use in China from the late 6th century, and an Arab traveller remarked on the custom in 851.
Q 13What did the Chinese fold and sew paper into during the Tang dynasty to preserve the flavour of tea?
Square bags
The same period saw tea served with multicoloured paper cups and napkins of different shapes.
Q 21Paper made from chemical pulp is called 'wood-free'. Why?
It contains no lignin
It should not be confused with tree-free paper, which really is made from other plants.
Q 22Who invented deinking, the process for removing printing ink from recycled paper, in 1774?
Justus Claproth, a German jurist
Ink makes up only about 2% of the weight of a waste-paper stock, but removing it is essential for reuse.
Q 23Which Frenchman patented the first continuous papermaking machine in 1799?
Louis-Nicolas Robert
Q 14Who invented the modern commercially available toilet paper in the United States, first sold in 1857?
Joseph Gayetty
His Medicated Paper came as flat sheets watermarked with his name and was still on sale in the 1920s.
Q 15Which company popularised toilet paper on rolls when it began marketing it in 1890?
Scott
As late as the 1930s a rival, Northern Tissue, was still advertising its product as 'splinter free'.
Q 16In 1393 the Ming court recorded how many sheets of toilet paper a year for imperial use?
720,000
Each sheet measured roughly two by three feet.
Q 17Which two inventors, in Canada and Germany, independently developed wood-pulping processes in 1844?
Charles Fenerty and Friedrich Gottlob Keller
Fenerty worked in Nova Scotia; both announced their findings by mid-1844 and wood pulp has dominated ever since.
Q 18Which chemical pulping process, invented in the 1870s, became the dominant method?
Kraft
Its reaction with lignin gives off heat, so most kraft mills are net contributors to the electricity grid.
Q 19Who developed the kraft (sulfate) pulping process in 1879?
Carl F. Dahl
The first kraft mill opened in Sweden in 1890; Tomlinson's 1930s recovery boiler later let mills recycle almost all their chemicals.
Q 20What substance left by mechanical pulping makes newsprint yellow and go brittle?
Lignin
Chemical pulping dissolves it out, which is why 'wood-free' paper contains no lignin even though it comes from trees.
He quarrelled with his employer over ownership, and the design ended up being developed in England.
Q 24The improved continuous paper machine of 1806 is named after which brothers?
Henry and Sealy Fourdrinier
The first working version was installed at Frogmore Mill in Hertfordshire in 1803.
Q 25At which Hertfordshire mill did Bryan Donkin install an improved Robert paper machine in 1803?
Frogmore
A third machine went into the Fourdriniers' own mill at Two Waters.
Q 26On a paper machine, what is the mesh-covered cylinder that can impress a watermark called?
A dandy roll
Cylinder-mould watermarks are clearer still, which is why banknotes and passports use them.
Q 27What are the fine, closely spaced marks seen in handmade paper called?
Laid lines
They run perpendicular to the more widely spaced chain lines, and machine paper imitates them with special rollers.
Q 28The rough, feathery border on a sheet of handmade paper is known as what?
A deckle edge
It comes from pulp seeping under the deckle frame of the mould.
Q 29The international paper-size standard that includes A4 is known by what number?
ISO 216
It grew out of the German DIN 476 standard and was formalised internationally in 1975.
Q 30What is the aspect ratio of every sheet in the A series of paper sizes?
√2
It means a sheet folded in half keeps the same proportions, a property noted by Georg Christoph Lichtenberg in 1786.