Science & technology history timeline
Discoveries and inventions that changed how we live, from the first tools to the internet.
234 events, oldest first.
Timeline of Science & technology history
-
240 BC
Halley's Comet is first recorded
Chinese astronomers recorded it, and it has been seen on every return since.
-
1054
Astronomers record the Crab Nebula supernova
It was bright enough to be seen in daylight for 23 days.
-
1202
Fibonacci introduces Arabic numerals to Europe
His book Liber Abaci also contains the famous Fibonacci sequence.
-
1473
Nicolaus Copernicus is born
He was born in Toruń, in present-day Poland.
-
c. 1495
Leonardo da Vinci designs a robot knight
Engineers built a working version from his notes in 2002.
-
1543
Copernicus publishes his Sun-centred universe
Legend says he was handed the first printed copy on his deathbed.
-
1543
Vesalius publishes his anatomy of the human body
His detailed drawings corrected errors that had stood since Roman times.
-
1564
Galileo Galilei is born
He was born in the same year as Shakespeare, and three days before Michelangelo died.
-
1572
Tycho Brahe sees a new star
Tycho lost part of his nose in a duel and wore a metal replacement.
-
1604
Kepler sees a supernova
It is the most recent supernova in our galaxy seen with the naked eye.
-
1608
The telescope is invented in the Netherlands
Hans Lipperhey applied for a patent on it, but was refused.
-
1609
Kepler publishes his first laws of planetary motion
Kepler showed that planets move in ellipses, not perfect circles.
-
1610
Galileo discovers Jupiter's moons
He named them after his patrons, the Medici family.
-
1628
William Harvey describes the circulation of blood
He worked out that the heart pumps more blood in an hour than the body contains.
-
1633
Galileo is tried by the Inquisition
He spent his last nine years under house arrest.
-
1639
Jeremiah Horrocks observes a transit of Venus
He was the first person known to have predicted and watched one.
-
1642
Isaac Newton is born
He was born in the same year that Galileo died.
-
1660
The Royal Society is founded
Its motto, 'Nullius in verba', means 'take nobody's word for it'.
-
1665
Robert Hooke names 'cells' in Micrographia
He named them after the small rooms that monks lived in.
-
1669
Phosphorus is discovered
Hennig Brand found it by boiling down huge quantities of urine.
-
1675
Cassini finds a gap in Saturn's rings
The gap, the Cassini Division, still bears his name.
-
1675
The Royal Observatory at Greenwich is founded
It was set up to help sailors work out their longitude at sea.
-
1676
Van Leeuwenhoek first observes bacteria
He was a cloth merchant who ground his own microscope lenses.
-
1687
Isaac Newton publishes his laws of motion
Harvard had already been teaching for half a century when Newton's Principia came out.
-
1709
Abraham Darby smelts iron with coke
His Coalbrookdale furnace helped kick-start the Industrial Revolution.
-
1712
Newcomen builds his steam engine
It was used to pump water out of mines.
-
1717
Lady Mary Wortley Montagu learns of inoculation
She saw smallpox inoculation in Istanbul and championed it in Britain.
-
1723
The first fire extinguisher is patented
Ambrose Godfrey's device used a small charge of gunpowder to scatter fire-fighting liquid.
-
1724
Fahrenheit proposes his temperature scale
He set 0 as the coldest temperature he could make with ice, water and salt.
-
1730
John Harrison begins his sea clocks
His later H4 watch helped solve the problem of finding longitude at sea.
-
1735
Linnaeus publishes Systema Naturae
It began the system of classifying living things that scientists still build on.
-
1742
Anders Celsius proposes his temperature scale
His original scale was upside down: water boiled at 0 and froze at 100.
-
1745
The Leyden jar stores electricity
Early experimenters used it to give each other shocks for entertainment.
-
1752
Benjamin Franklin's kite experiment
He showed lightning was electricity, and went on to invent the lightning rod.
-
1758
Halley's Comet returns as predicted
Edmond Halley had died 16 years earlier.
-
1764
Hargreaves invents the spinning jenny
It let one worker spin several threads at once.
-
1766
Henry Cavendish discovers hydrogen
He called it 'inflammable air'.
-
1769
James Watt patents his improved steam engine
The unit of power, the watt, is named after him.
-
1771
Arkwright opens his cotton mill at Cromford
It is often called the world's first modern factory.
-
1774
Joseph Priestley discovers oxygen
Priestley also invented fizzy soda water.
-
1781
The Iron Bridge opens in Shropshire
It was the world's first major bridge made of cast iron.
-
1781
William Herschel discovers Uranus
Herschel wanted to name it 'George's Star' after King George III.
-
1783
Lavoisier shows water is made of two gases
He also gave hydrogen its name.
-
1795
France passes its first metric-system law
The metre was defined as one ten-millionth of the distance from the North Pole to the equator.
-
1796
Edward Jenner tests the first vaccine
The word 'vaccine' comes from vacca, Latin for cow, after the cowpox Jenner used.
-
1798
Henry Cavendish weighs the Earth
He worked out Earth's density using a delicate torsion balance in a shed.
-
1800
Volta invents the electric battery
Alessandro Volta's name gives us the word 'volt'.
-
1801
Ceres, the first asteroid, is discovered
It was spotted on the first night of the 19th century.
-
1807
The first passenger railway service begins
The Swansea and Mumbles Railway's first passengers rode in a horse-drawn carriage.
-
1816
René Laennec invents the stethoscope
Laennec rolled paper into a tube rather than press his ear to a patient's chest.
-
1817
Karl Drais invents the 'running machine'
The ancestor of the bicycle had no pedals; riders pushed along with their feet.
-
1821
Faraday builds the first electric motor
Michael Faraday had little schooling and started out as a bookbinder's apprentice.
-
1822
Babbage begins his Difference Engine
A full Difference Engine No. 2 was finally built from his plans in 1991 - and it worked.
-
1823
The first lighter is invented
German chemist Johann Döbereiner's lamp made a flame from hydrogen and a platinum catalyst.
-
1825
The Erie Canal opens
It helped make New York City America's busiest port.
-
1825
The first public steam railway opens
The Stockton and Darlington Railway's opening train carried coal, flour and hundreds of passengers.
-
1826
The friction match is invented
English chemist John Walker found it by accident when a chemical-coated stick caught fire as he scraped it.
-
1827
Georg Ohm publishes Ohm's law
His work was dismissed at first, before becoming a foundation of electronics.
-
1829
Stephenson's Rocket wins the Rainhill Trials
It reached about 30 mph, astonishing the crowds.
-
1830
Edwin Budding invents the lawnmower
He based it on a machine for trimming cloth.
-
1839
Robert Cornelius takes the first selfie
For the first photographic self-portrait, he had to sit still for several minutes.
-
1839
The daguerreotype photograph is announced
A Daguerre street scene caught the first person ever photographed: a man having his boots polished.
-
1842
Christian Doppler describes the Doppler effect
It was later tested with trumpeters playing on a moving train.
-
1843
Ada Lovelace publishes the first computer program
She wrote it for Charles Babbage's Analytical Engine, which was never built.
-
1843
The fax machine is patented
Scottish inventor Alexander Bain patented it more than 30 years before the telephone.
-
1843
The earliest surviving photo of a US president is taken
John Quincy Adams sat for it after leaving office; an 1841 image of William Henry Harrison is lost.
-
1844
Morse sends his first long-distance telegraph
The message 'What hath God wrought' travelled from Washington to Baltimore.
-
1845
The rubber band is patented
Stephen Perry's patent used vulcanised rubber.
-
1846
Anaesthesia is first demonstrated in public
The Boston operating theatre where it happened is now known as the Ether Dome.
-
1846
Neptune is discovered
It was found by maths first: Urbain Le Verrier calculated where astronomers should look.
-
1849
The safety pin is patented
Walter Hunt is said to have invented it in a few hours to pay off a $15 debt, then sold the patent for $400.
-
1851
Isaac Singer patents his sewing machine
Singer's company pioneered selling machines on instalment plans.
-
1854
John Snow traces cholera to a water pump
He had the handle of the Broad Street pump removed.
-
1858
Gray's Anatomy is first published
Henry Gray died of smallpox just three years later, aged 34.
-
1858
The first transatlantic telegraph message
Queen Victoria's 98-word greeting to President Buchanan took about 16 hours to send.
-
1858
Wallace sends Darwin his theory of evolution
It pushed Darwin to finally publish his own ideas.
-
1859
Darwin publishes On the Origin of Species
Booksellers took up the whole first printing of 1,250 copies on the day it came out.
-
1860
The oldest known recording of a voice is made
A phonautograph caught someone singing 'Au clair de la lune' 17 years before Edison's phonograph.
-
1863
The London Underground opens
The world's first underground railway opened while Lincoln was president, using steam locomotives.
-
1865
James Clerk Maxwell unifies electricity and magnetism
His equations showed that light is an electromagnetic wave.
-
1866
Gregor Mendel publishes his pea experiments
His work on heredity was ignored for 34 years before being rediscovered.
-
1867
Joseph Lister introduces antiseptic surgery
He used carbolic acid, and Listerine mouthwash was later named after him.
-
1868
Helium is discovered in the Sun
It was detected in sunlight 27 years before it was found on Earth.
-
1868
The first traffic light is installed in London
The gas-lit signal outside Parliament predated the motor car, and it exploded a few weeks later.
-
1868
The QWERTY typewriter is patented
The QWERTY layout was designed partly to stop the typebars jamming.
-
1869
Mendeleev publishes his periodic table
He left gaps for undiscovered elements and correctly predicted their properties.
-
1869
The Suez Canal opens
Ships could finally sail between Europe and Asia without going all the way around Africa.
-
1872
Japan's first railway opens
British engineers helped build the line between Tokyo and Yokohama.
-
1874
Barbed wire is patented
Joseph Glidden's design helped fence off the open range of the American West.
-
1876
Alexander Graham Bell patents the telephone
Bell's lawyer filed his patent on the same day as a rival claim by Elisha Gray.
-
1877
Edison demonstrates his phonograph
The first words he recorded were 'Mary had a little lamb'.
-
1878
Muybridge photographs a galloping horse
His photos proved a galloping horse has all four hooves off the ground at once.
-
1879
Edison tests a long-lasting light bulb
His later carbonised bamboo filaments could burn for over 1,200 hours.
-
1880
Cologne Cathedral is completed
Work began in 1248, so the cathedral took over six centuries to finish.
-
1882
Construction of the Sagrada Família begins
Gaudí worked on it for over 40 years, and it is still being finished today.
-
1882
Edison's Pearl Street power station opens
On its first day it lit about 400 lamps for around 80 customers in Manhattan.
-
1883
The Brooklyn Bridge opens
P. T. Barnum later led 21 elephants across it to prove it was safe.
-
1885
Pasteur first uses his rabies vaccine
His patient, nine-year-old Joseph Meister, survived and later worked at the Pasteur Institute.
-
1886
A new process makes aluminium cheap
Napoleon III had served his most honoured guests on aluminium plates, then worth more than gold.
-
1886
Josephine Cochrane patents the dishwasher
She was a wealthy socialite fed up with servants chipping her china.
-
1886
Karl Benz patents the motor car
Two years later, Bertha Benz secretly drove it 106 km to her mother's house to prove it worked.
-
1887
Émile Berliner invents the gramophone record
His flat discs were far easier to mass-produce than Edison's cylinders.
-
1887
Heinrich Hertz detects radio waves
Asked what use they had, Hertz reportedly said, 'Nothing, I guess.'
-
1888
The Kodak camera goes on sale
Its slogan was 'You press the button, we do the rest'.
-
1888
The oldest surviving film is shot
Louis Le Prince's Roundhay Garden Scene lasts about two seconds.
-
1889
The Eiffel Tower is completed
It was built for the 1889 World's Fair and was meant to stand for only 20 years.
-
1890
Florence Nightingale's voice is recorded
Her short wax-cylinder message can still be heard today.
-
1890
The Forth Bridge opens
Repainting it seemed so endless that it became a byword for a never-ending task.
-
1892
James Dewar invents the vacuum flask
He invented it for keeping chemicals cold in the lab, not tea hot.
-
1893
The first Ferris wheel turns in Chicago
It was built to rival the Eiffel Tower at the World's Columbian Exposition.
-
1894
Tower Bridge opens
It is often mistaken for London Bridge, which is the next bridge upstream.
-
1895
X-rays are discovered
Wilhelm Röntgen's first X-ray image showed his wife's hand, wedding ring and all.
-
1896
Marconi patents his radio system
Italian officials showed little interest, so he patented it in Britain.
-
1898
London's first escalator opens at Harrods
Nervous customers were offered brandy or smelling salts at the top.
-
1898
Marie and Pierre Curie discover radium
Marie Curie's notebooks are still so radioactive they are kept in lead-lined boxes.
-
1900
The Paris Metro opens
Its Art Nouveau entrances were designed by Hector Guimard.
-
1901
Hubert Booth's vacuum cleaner is patented
His horse-drawn machine parked outside and fed its hoses in through the windows.
-
1901
Karl Landsteiner discovers blood groups
His discovery made blood transfusions far safer.
-
1903
Britain introduces car number plates
London's first plate, A 1, went to Earl Russell for his Napier car.
-
1903
Marie Curie wins her first Nobel Prize
She was the first woman to win a Nobel Prize.
-
1903
The Wright brothers' first powered flight
Orville Wright lived until 1948 - after a jet had already broken the sound barrier.
-
1904
Gillette's safety razor is patented
King C. Gillette's real money came from selling the disposable blades.
-
1904
The New York subway opens
About 150,000 people rode it on its first evening.
-
1905
Albert Einstein publishes special relativity
He was working as a clerk at the Swiss patent office at the time.
-
1906
The first radio broadcast of music
Reginald Fessenden played 'O Holy Night' on the violin to ships at sea.
-
1908
The first Model T Ford is built
Ford's moving assembly line later cut its build time from about 12 hours to 90 minutes.
-
1910
Neon lighting is first shown in Paris
Georges Claude displayed the first neon lamps at the Paris Motor Show.
-
1911
Rutherford discovers the atomic nucleus
He compared the result to a shell bouncing back off tissue paper.
-
1912
Alfred Wegener proposes continental drift
He was widely ridiculed, and plate tectonics wasn't accepted until the 1960s.
-
1914
The first scheduled airline flight
The 23-minute hop across Tampa Bay carried one paying passenger.
-
1914
The Panama Canal opens
It saved ships sailing from New York to San Francisco a voyage of nearly 8,000 miles.
-
1915
Einstein publishes general relativity
It predicted that gravity bends light.
-
1915
The first coast-to-coast phone call in the US
Bell repeated 'Mr Watson, come here', and Watson replied it would take him a week.
-
1916
Daylight saving time is introduced
Germany introduced it first, to save coal during the First World War.
-
1919
An eclipse confirms Einstein's relativity
Arthur Eddington's measurements made Einstein world-famous overnight.
-
1920
The first commercial radio station goes on air
KDKA in Pittsburgh began by broadcasting US presidential election results.
-
1921
The pop-up toaster is patented
Charles Strite invented it after being served burnt toast in a factory canteen.
-
1922
Insulin is first used to treat diabetes
The first patient, 14-year-old Leonard Thompson, made a dramatic recovery.
-
1928
Penicillin is discovered
Alexander Fleming noticed mould killing bacteria on a dish left out while he was on holiday.
-
1929
Edwin Hubble shows the universe is expanding
Einstein later visited Hubble at Mount Wilson Observatory.
-
1930
Pluto is discovered
Its name was suggested by Venetia Burney, an 11-year-old schoolgirl in Oxford.
-
1930
The first flight attendant takes to the air
Ellen Church was a registered nurse.
-
1931
The Empire State Building opens
It was built in just 410 days.
-
1932
The neutron is discovered
James Chadwick won the Nobel Prize for it just three years later.
-
1935
The first parking meter is installed
It was installed in Oklahoma City.
-
1936
Alan Turing describes a universal computer
He imagined a universal machine years before any real computer existed.
-
1937
Technetium, the first artificial element, is made
Its name comes from the Greek word for 'artificial'.
-
1937
The Golden Gate Bridge opens
Its famous 'International Orange' colour was inspired by the primer used on the steel.
-
1938
Nuclear fission is discovered
Lise Meitner helped explain it but was left out of the Nobel Prize.
-
1938
László Bíró patents his ballpoint pen
The Hungarian journalist got the idea from the fast-drying ink used to print newspapers.
-
1942
The first nuclear reactor goes critical
Chicago Pile-1 was built in a squash court under the stands of a football stadium.
-
1947
A moth becomes the first computer 'bug'
Grace Hopper's team found it in a relay and taped it into their logbook.
-
1947
The transistor is invented
A single smartphone chip today contains billions of them.
-
1948
The vinyl LP is introduced
Columbia's long-playing record held over 20 minutes of music per side.
-
1951
Britain's first zebra crossing
Crossings were already marked by amber 'Belisha beacons', named after a transport minister; they only began flashing in 1952.
-
1952
The first jet airliner enters service
The de Havilland Comet halved journey times on some routes.
-
1953
Watson and Crick reveal DNA's double helix
Rosalind Franklin's X-ray image, 'Photo 51', was crucial to the discovery.
-
1954
The first non-stick pan is made
A French engineer's wife persuaded him to coat her pans with Teflon.
-
1954
The first successful kidney transplant
It was between identical twins in Boston.
-
1955
The polio vaccine is declared safe
Jonas Salk never patented it, asking: 'Could you patent the sun?'
-
1955
Velcro is patented
George de Mestral was inspired by burrs that stuck to his dog's fur on a walk in the Alps.
-
1957
Bubble Wrap is invented
It was first intended to be a textured wallpaper.
-
1958
Britain's first motorway opens
The Preston bypass was just 8 miles long.
-
1958
The first implantable pacemaker is fitted
Its first patient went on to outlive the device's inventor.
-
1958
The integrated circuit is invented
Jack Kilby built the first one while most of his colleagues were away on summer holiday.
-
1958
Tokyo Tower opens
It was inspired by the Eiffel Tower but painted orange and white for air safety.
-
1960
The contraceptive pill is approved in the US
Within five years, millions of American women were using it.
-
1960
The first laser is built
Early sceptics called it 'a solution looking for a problem'.
-
1962
Telstar relays the first live transatlantic TV
An instrumental named after it, by the Tornados, topped the US charts.
-
1963
The compact cassette is introduced
Philips let other manufacturers use the design for free, helping it spread worldwide.
-
1964
Japan's first bullet train runs
The line opened just nine days before the Tokyo Olympics.
-
1965
Gordon Moore makes his famous prediction
Moore's law predicted that the number of transistors on a chip would keep doubling.
-
1967
The first human heart transplant
Christiaan Barnard performed it in Cape Town; the patient lived for 18 days.
-
1968
The computer mouse is first demonstrated
The first mouse had a casing carved from wood.
-
1969
The first ARPANET message is sent
The network crashed after the first two letters, 'LO', of the word 'LOGIN'.
-
1970
Egypt's Aswan High Dam is completed
The temples of Abu Simbel were cut into blocks and moved to save them from its reservoir.
-
1970
The jumbo jet enters passenger service
The Boeing 747's famous hump was designed so it could easily be converted into a cargo plane.
-
1971
Intel's first microprocessor is released
The Intel 4004 was designed for a calculator made by Japanese company Busicom.
-
1971
The first email is sent between networked computers
Ray Tomlinson chose the @ sign and later said the test message was something like QWERTYUIOP.
-
1972
The first leap second is added
Leap seconds keep atomic clocks in step with Earth's slightly irregular spin.
-
1973
The first handheld mobile phone call
Motorola's Martin Cooper made it on a New York street - and called a rival engineer at Bell Labs.
-
1975
Microsoft is founded
Bill Gates and Paul Allen's first product was a BASIC language for the Altair computer.
-
1976
Concorde enters passenger service
It flew London to New York in about three and a half hours, at twice the speed of sound.
-
1976
The CN Tower is completed
It was the world's tallest freestanding structure for over 30 years.
-
1977
The first MRI scan of a human body
The first full-body scanner was named 'Indomitable'.
-
1978
The first GPS satellite is launched
GPS was originally built for the US military.
-
1978
The first IVF baby is born
Louise Brown was born in Oldham, England.
-
1978
The first spam email is sent
It advertised DEC computers to a few hundred ARPANET users.
-
1980
Post-it Notes go on sale
Their weak glue was an accidental discovery by a 3M scientist trying to make a super-strong adhesive.
-
1980
Smallpox is declared eradicated
It remains the only human disease ever wiped out worldwide.
-
1981
The IBM Personal Computer is launched
It ran an operating system Microsoft had bought from another firm for about $50,000.
-
1982
CDs go on sale for the first time
The first CD album released commercially was Billy Joel's 52nd Street.
-
1982
Elk Cloner, an early computer virus, spreads
It was written by a 15-year-old as a prank and spread on Apple II floppy disks.
-
1982
The smiley :-) is proposed
Scott Fahlman suggested it to mark jokes on a university message board.
-
1984
The Apple Macintosh goes on sale
It was launched with a famous Super Bowl advert directed by Ridley Scott.
-
1988
The first internet worm spreads
The Morris worm, written by a graduate student, slowed thousands of computers to a crawl.
-
1991
A webcam is set up to watch a coffee pot
Cambridge scientists used it to check whether the pot was empty before walking over.
-
1991
The first Ig Nobel Prizes are awarded
They honour research that first makes people laugh, and then makes them think.
-
1991
The World Wide Web goes public
The first website explained what the web was and how to use it.
-
1992
The first text message is sent
It read 'Merry Christmas' and was sent from a computer to a phone.
-
1994
Comet Shoemaker-Levy 9 hits Jupiter
It was the first collision of two solar system bodies ever observed.
-
1994
The Channel Tunnel opens
Its undersea section is the longest of any tunnel in the world.
-
1994
The first smartphone, IBM Simon, goes on sale
It had a touchscreen and apps 13 years before the iPhone.
-
1995
The first item is sold on eBay
It was a broken laser pointer, bought by a collector of broken laser pointers.
-
1995
The first planet around a Sun-like star is found
Its discoverers won the Nobel Prize in Physics in 2019.
-
1995
Windows 95 is released
Microsoft paid to use the Rolling Stones' 'Start Me Up' in its launch adverts.
-
1996
Dolly the sheep is born
The first mammal cloned from an adult cell was named after Dolly Parton.
-
1997
IBM's Deep Blue beats Garry Kasparov at chess
Kasparov had beaten an earlier version of the machine the year before.
-
1998
Cattle are cloned for the first time
Japanese scientists cloned eight calves from a single cow.
-
1998
Google is founded
Its original name was BackRub.
-
1999
Napster launches
The file-sharing service was created by a college student and shut down within about two years.
-
2000
The Millennium Bug passes
Billions were spent fixing Y2K, and very few systems failed.
-
2001
The iPod is released
Its slogan promised '1,000 songs in your pocket'.
-
2001
Wikipedia launches
Its predecessor, Nupedia, managed only a couple of dozen finished articles.
-
2003
Skype launches
Its name grew out of 'sky peer-to-peer'.
-
2003
The Human Genome Project is completed
It took 13 years and cost about $3 billion.
-
2004
Shanghai's maglev train enters service
It reaches 431 km/h on its run to the airport.
-
2006
Pluto is reclassified as a dwarf planet
Pluto was officially a planet for just 76 years.
-
2007
The first iPhone is released
Steve Jobs unveiled it in January 2007 and it went on sale that June.
-
2008
Apple's App Store opens
It launched with about 500 apps.
-
2008
Spotify launches
It was founded in Sweden, where music piracy was rife.
-
2008
The Large Hadron Collider is switched on
It broke down nine days later, and repairs took more than a year.
-
2009
The first Bitcoin block is mined
Its creator, known only as Satoshi Nakamoto, has never been identified.
-
2010
The Burj Khalifa opens
At 828 metres, it is more than twice the height of the Empire State Building.
-
2012
CRISPR gene editing is described
Its discoverers won the Nobel Prize in Chemistry in 2020.
-
2012
The Higgs boson is discovered
Peter Higgs had predicted it nearly 50 years earlier.
-
2012
The Shard opens in London
At about 310 metres, it is the tallest building in the UK.
-
2012
The Tokyo Skytree opens
At 634 metres, it is the world's tallest tower.
-
2015
Gravitational waves are detected for the first time
They came from two black holes that collided about 1.3 billion years ago.
-
2016
Oganesson, the heaviest element, gets its name
It is element 118, and only a handful of its atoms have ever been made.
-
2017
'Oumuamua visits from another star system
It was the first known object to pass through our solar system from interstellar space.
-
2019
The first image of a black hole is revealed
Radio telescopes around the world were combined into one Earth-sized virtual telescope.
-
2020
The first mRNA vaccine is approved
It was developed in less than a year.
-
2022
ChatGPT is released
It reached an estimated 100 million users in about two months.
Think you know your history?
Put 5, 7 or 10 events in chronological order in three tries. A new Chrono-Shift puzzle arrives every day.
Play today's Chrono-ShiftOr try Eras and Higher or Lower.