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Electromagnetism Timeline

Records in the Physics collection relating to electricity, magnetism, electromagnetic theory, fields and electromagnetic experiments.

129 records1626–2025

About this Electromagnetism timeline

Follow the experimental and theoretical development of electricity, magnetism, electromagnetic induction, fields and electromagnetic waves.

This page contains 129 records spanning 1626–2025. Frequently represented countries include United States of America, Great Britain, Germany, France, Netherlands. Example event labels include Magnet Armature Experiments, Birth of Hans Christian Oersted, Coulomb Law, Electromagnetism Demonstration, Magnetic Effect of Electric Current.

Physicists frequently represented in these records

Timeline records

DatePersonEventPlaceDescription
1626Galileo GalileiMagnet Armature ExperimentsItalyGalileo reports experiments in which an iron armature greatly increases the lifting strength of a magnet.
1777Hans Christian OerstedBirth of Hans Christian OerstedNetherlandsBirth of Hans Christian Oersted, founder of the science of electromagnetism
1785Charles-Augustin de Coulomb
Physicist
Coulomb LawParis, FranceUses a torsion balance to measure forces between electric charges.
21 April 1820Hans Christian Oersted
Physicist
Electromagnetism DemonstrationCopenhagen, DenmarkObserves an electric current deflecting a nearby compass needle.
21 April 1820Hans Christian Oersted
Physicist
Magnetic Effect of Electric CurrentCopenhagen, DenmarkEstablishes an experimental connection between electricity and magnetism.
1822William SturgeonInvention of ElectromagnetGreat BritainInvents the 1st electromagnet
1831Michael FaradayDiscovery of Electro-MagnetismGreat BritainDiscovers Electro-Magnetic Induction
25 February 1837Thomas Davenport
Inventor
Electric Motor PatentWashington, United States of AmericaReceives United States patent number 132 for an electromagnetic motor.
25 February 1837Thomas Davenport
Inventor
First United States Electric Motor PatentWashington, United States of AmericaSecures the first United States patent issued for an electric motor.
1837William Fothergill Cooke
Inventor
Electric Telegraph PatentLondon, Great BritainCo-develops and patents a practical electric telegraph system.
1837William Fothergill Cooke
Inventor
Five-Needle TelegraphLondon, Great BritainCreates a five-needle instrument for transmitting letters through electrical signals.
1837Samuel Finley Breese Morse
Inventor
Experimental Telegraph ReceiverNew York, United States of AmericaBuilds an experimental receiver capable of recording electrical signal changes.
1837Samuel Finley Breese Morse
Inventor
Telegraph Patent CaveatNew York, United States of AmericaFiles a patent caveat while refining his electromagnetic telegraph.
1837Charles Wheatstone
Physicist and Inventor
Electric Telegraph CollaborationLondon, Great BritainProvides electrical and instrument expertise for the Cooke-Wheatstone telegraph.
1837Charles Wheatstone
Physicist and Inventor
Needle Telegraph DevelopmentLondon, Great BritainHelps transform electromagnetic needle deflection into practical written communication.
1838Richard LamingDiscovery of ElectronsGreat BritainBetween 1838 and 1851, British natural philosopher Richard Laming developed the idea that an atom is composed of a core of matter surrounded by subatomic particles that had unit electric charge
1846William WeberDiscovery of ElectronsGermanyBeginning in 1846, German physicist William Weber theorized that electricity was composed of positively and negatively charged fluids, and their interaction was governed by the inverse square law
1858Julius Plucker
Physicist
Magnetic Deflection of Cathode RaysBonn, GermanyShows that magnetic fields alter the path of cathode-ray fluorescence in gas-discharge tubes.
1865James Clerk Maxwell
Physicist
Electromagnetic TheoryLondon, Great BritainPublishes equations showing electromagnetic waves can propagate through space.
1874George Johnstone StoneyDiscovery of ElectronsIrelandAfter studying the phenomenon of electrolysis in 1874, Irish physicist George Johnstone Stoney suggested that there existed a "single definite quantity of electricity", the charge of a monovalent ion
1879Edwin Herbert Hall
Physicist
Hall EffectBaltimore, United States of AmericaDiscovers that a magnetic field produces a transverse voltage in a current-carrying conductor, later understood through electron motion.
1880Jacques Curie
Physicist
PiezoelectricityParis, FranceDiscovers piezoelectricity with his brother Pierre Curie.
1880Pierre Curie
Physicist
PiezoelectricityParis, FranceDiscovers piezoelectricity with his brother Jacques Curie.
16 May 1881Werner von Siemens
Inventor
First Electric TramBerlin-Lichterfelde, GermanyOpens an electric railway at Lichterfelde near Berlin.
16 May 1881Werner von Siemens
Inventor
Lichterfelde Electric RailwayBerlin-Lichterfelde, GermanyThe line becomes the world's first electric tramway.
1881Jacques Curie
Physicist
Inverse Piezoelectric EffectParis, FranceHelps demonstrate the inverse piezoelectric effect.
1881Pierre Curie
Physicist
Inverse Piezoelectric EffectParis, FranceHelps experimentally verify the inverse piezoelectric effect.
1881Pierre Curie
Physicist
Inverse Piezoelectric EffectParis, FranceShows crystals can deform under an electric field.
1881Pierre Curie
Physicist
Piezoelectric VerificationParis, FranceShows that electric fields can deform suitable crystals.
1881Hermann von HelmholtzDiscovery of ElectronsGermanyIn 1881, German physicist Hermann von Helmholtz argued that both positive and negative charges were divided into elementary parts, each of which "behaves like atoms of electricity"
1881William Thomson Kelvin
Professor
Electric Lighting of University HouseGlasgow, Great BritainCreates one of the first houses in the world to be fully lit by electricity on the university campus.
1884Svante August Arrhenius
Physical Chemist
Electrolytic Dissociation TheoryUppsala, SwedenProposes that dissolved salts separate into electrically charged ions.
1884Svante August Arrhenius
Physical Chemist
Ions in SolutionUppsala, SwedenExplains electrical conductivity and chemical reactions in electrolyte solutions.
1892Hendrik Antoon Lorentz
Physicist
Electron Theory of MatterLeiden, NetherlandsDevelops an electrodynamic theory in which charged microscopic particles account for electrical and optical behaviour in matter.
1892Hendrik Antoon Lorentz
Physicist
Relativity, Theory ofLeiden, NetherlandsLorentz develops electron theory and uses contraction ideas in attempts to account for electromagnetic experiments
1894George Johnstone StoneyDiscovery of ElectronsIrelandStoney coined the term electron to describe these elementary charges, saying, "... an estimate was made of the actual amount of this most remarkable fundamental unit of electricity, for which I have since ventured to suggest the name electron"
1895Jagadish Chandra Bose
Physicist
Microwave DemonstrationCalcutta, IndiaJagadish Chandra Bose publicly demonstrates the transmission and detection of millimetre-wave electromagnetic radiation in Calcutta.
1895Pierre Curie
Physicist
Curie PointParis, FranceShows that magnetic properties change at a critical temperature.
1895Pierre Curie
Physicist
DoctorateParis, FranceReceives a doctorate for research on magnetism.
1895Hendrik Antoon Lorentz
Physicist
Relativity, Theory ofLeiden, NetherlandsLorentz introduces local time in electromagnetic theory, a step toward the later Lorentz transformations
1895Jean Baptiste Perrin
Physicist
Negative Charge of Cathode RaysParis, FranceDemonstrates that cathode rays carry negative electric charge by collecting the rays in an insulated conductor.
1896Pieter Zeeman
Physicist
Zeeman Effect and Charged OscillatorsLeiden, NetherlandsFinds that magnetic fields split spectral lines, providing evidence for charged particles participating in atomic radiation.
1897Jagadish Chandra Bose
Physicist
Microwave ResearchLondon, IndiaJagadish Chandra Bose presents his microwave apparatus and research on short electromagnetic waves at the Royal Institution in London.
10 December 1902Hendrik Antoon Lorentz
Physicist
Nobel Prize in PhysicsStockholm, NetherlandsShares the Nobel Prize in Physics for research on the influence of magnetism on radiation.
10 December 1902Pieter Zeeman
Physicist
Nobel Prize in PhysicsStockholm, NetherlandsShares the Nobel Prize in Physics for discovering the effect of magnetism on light spectra.
1902Philipp Lenard
Physicist
Photoelectric Electron EnergyKiel, GermanyShows that photoelectron energy depends strongly on light frequency rather than simply on intensity.
1902Hendrik Antoon Lorentz
Physicist
Nobel PrizeStockholm, NetherlandsShares the Nobel Prize in Physics for research on the influence of magnetism upon radiation phenomena and for developing the electron theory used to explain the Zeeman effect.
1902Pieter Zeeman
Physicist
Nobel PrizeStockholm, NetherlandsShares the Nobel Prize in Physics for discovering that magnetic fields split spectral lines, providing experimental evidence for the interaction between magnetism and light.
1904Jagadish Chandra Bose
Physicist
Radio Detector PatentUnited States, IndiaJagadish Chandra Bose receives a United States patent for a detector of electrical disturbances based on semiconductor-like crystal detection.
1904Friedrich Hasenohrl
Physicist
Electromagnetic Mass-EnergyVienna, AustriaExplores the relationship between electromagnetic energy and mass before relativity.
17 March 1905Albert Einstein
Physicist
Photoelectric Effect Paper SubmittedBern, SwitzerlandSends his light-quantum paper to Annalen der Physik, using quanta to explain the photoelectric effect.
1905Albert Einstein
Physicist
Photoelectric Quantum ExplanationBern, SwitzerlandExplains photoelectric emission by proposing that light transfers energy in discrete quanta to electrons.
1905Philip LenardNobel PrizeGermanyWinner of the Nobel Prize for Physics, for photoelectric effects & cathode rays
December 1906Joseph John Thomson
Physicist
Nobel Prize for Gas ConductionStockholm, Great BritainReceives the Nobel Prize in Physics for investigations of electrical conduction through gases.
1906Joseph John Thomson
Physicist
Nobel PrizeStockholm, Great BritainReceives the Nobel Prize in Physics for theoretical and experimental investigations of electrical conduction through gases, work closely associated with the identification of the electron.
1909Harvey Fletcher
Physicist
Oil-Drop Experiment DevelopmentChicago, United States of AmericaDevelops the use of slowly evaporating oil droplets for precision measurements of elementary electric charge.
1909Robert Andrews Millikan
Physicist
Oil Drop Charge ExperimentChicago, United States of AmericaBegins oil-drop measurements that isolate elementary electric charge by balancing electrical and gravitational forces on charged droplets.
20 May 1910Erwin Rudolf Josef Alexander Schrodinger
Doctoral Student
Doctorate AwardedVienna, AustriaReceives his doctorate from the University of Vienna for research on the conduction of electricity over the surface of insulators in moist air.
1911Robert Andrews Millikan
Physicist
Elementary Electron ChargeChicago, United States of AmericaReports a precise value for the elementary electric charge from oil-drop measurements, strengthening the case for quantized charge.
1 August 1913Robert Andrews Millikan
Physicist
Final Oil-Drop Charge PublicationChicago, United States of AmericaPublishes the definitive oil-drop measurement of the elementary electric charge.
1915Albert Einstein
Physicist
Einstein-de Haas EffectBerlin, GermanyPublishes experimental work with Wander de Haas linking magnetism to angular momentum.
1915Robert Andrews Millikan
Physicist
Photoelectric Equation VerificationChicago, United States of AmericaExperimentally verifies Einstein's relation between light frequency and the kinetic energy of emitted electrons.
1919Heinrich BarkhausenDiscovery of Barkhausen LawGermanyDiscovers discontinuities in the magnetization of ferrous metals
1921Albert Einstein
Physicist
Nobel PrizeStockholm, GermanyReceives the Nobel Prize in Physics for contributions to theoretical physics, particularly his explanation of the law governing the photoelectric effect.
1921Albert Einstein
Physicist
Nobel Prize in PhysicsBerlin, GermanyAwarded the 1921 Nobel Prize in Physics for theoretical physics, especially the law of the photoelectric effect.
1922Albert Einstein
Physicist
Early Unified Field ProgramBerlin, GermanyBegins sustained attempts to combine gravitation and electromagnetism within a single field framework.
December 1923Robert Andrews Millikan
Physicist
Nobel Prize for Electron ChargeStockholm, United States of AmericaReceives the Nobel Prize in Physics for elementary-charge measurements and photoelectric-effect work.
1923Robert MillikanNobel PrizeStockholm, United States of AmericaReceives the Nobel Prize in Physics for work on the elementary electric charge and the photoelectric effect.
1927Charles Thomson Rees Wilson
Physicist
Nobel PrizeStockholm, Great BritainShares the Nobel Prize in Physics for developing the cloud-chamber method that makes the tracks of electrically charged particles visible.
1928Ralph Howard Fowler
Physicist
Field Electron Emission TheoryCambridge, Great BritainWith Lothar Nordheim, explains electron emission from metals in strong electric fields as quantum tunnelling.
15 May 1935Albert Einstein
Physicist
Franklin MedalPhiladelphia, SwitzerlandReceives the Franklin Medal in recognition of his work in relativity and the photoelectric effect.
1936Felix Bloch
Physicist
Neutron Magnetic Moment PredictionStanford, SwitzerlandPredicts that the neutron should possess a magnetic moment despite having no net electric charge.
1939Luis Alvarez
Physicist
Neutron Magnetic Moment MeasurementBerkeley, United States of AmericaWith Felix Bloch, uses magnetic resonance to measure the neutron magnetic moment.
1939Felix Bloch
Physicist
Neutron Magnetic ResonanceBerkeley, SwitzerlandWith Luis Alvarez, applies resonance methods to determine the neutron magnetic moment.
15 January 1940Luis Alvarez
Physicist
Quantitative Neutron Moment PublicationBerkeley, United States of AmericaPublishes a quantitative magnetic-resonance determination of the neutron magnetic moment with Felix Bloch.
15 January 1940Felix Bloch
Physicist
Quantitative Neutron Moment PublicationBerkeley, SwitzerlandPublishes the neutron magnetic-moment measurement obtained with Luis Alvarez.
13 September 1942Ernest Orlando LawrenceElectromagnetic Pilot Plant RecommendationBerkeley, United States of AmericaThe S-1 Executive Committee recommends a Tennessee pilot plant based on Lawrence's electromagnetic isotope-separation work.
1942—Uranium Enrichment MethodsOak Ridge, United States of AmericaThe Manhattan Project commits to parallel development of electromagnetic and gaseous-diffusion methods for large-scale uranium isotope separation.
1942Hannes Olof Gosta Alfven
Plasma Physicist
Alfven WavesStockholm, SwedenPredicts waves travelling through magnetized electrically conducting fluids.
1942Hannes Olof Gosta Alfven
Plasma Physicist
Magnetohydrodynamic WavesStockholm, SwedenEstablishes a central phenomenon in plasma physics and space science.
1942Erwin Rudolf Josef Alexander Schrodinger
Director
Unified Field Theory ResearchDublin, AustriaPursues mathematical approaches to unifying gravitation and electromagnetism while directing theoretical-physics research in Dublin.
January 1944—Y-12 Calutron OperationsOak Ridge, United States of AmericaThe first Alpha calutron at Y-12 begins operation as electromagnetic isotope separation moves from construction into production.
1944Isidor Isaac RabiNobel PrizeStockholm, United States of AmericaReceives the Nobel Prize in Physics for the resonance method used to measure magnetic properties of atomic nuclei.
1944Yevgeny Konstantinovich Zavoisky
Physicist
Electron Paramagnetic ResonanceKazan, RussiaObserves resonant absorption associated with unpaired electron spins in a magnetic field, founding electron paramagnetic resonance.
28 February 1945Robert OppenheimerFinal Plutonium Bomb Design MeetingLos Alamos, United States of AmericaA senior design meeting fixes the plutonium bomb approach around a solid core, explosive lenses, electric detonators and a modulated neutron initiator.
2 May 1945Luis Walter AlvarezX-Unit Detonation TestingLos Alamos, United States of AmericaA Raytheon Mark II X-Unit arrives for testing as part of the electrical firing system for the implosion bomb.
1947Polykarp Kusch
Physicist
Electron Magnetic Moment AnomalyNew York, United States of AmericaMeasures a deviation of the electron magnetic moment from the simplest Dirac prediction, providing another key test for quantum electrodynamics.
1947Erwin Rudolf Josef Alexander Schrodinger
Director
General Relativity ResearchDublin, AustriaContinues mathematical investigations into general relativity and attempts to formulate unified descriptions of gravitation and electromagnetism.
1948Enrico Fermi
Physicist
Particle Acceleration TheoryChicago, United States of AmericaDevelops ideas explaining how charged particles can gain energy through repeated interactions with moving magnetic fields in astrophysical environments.
1948Julian Seymour Schwinger
Physicist
Electron Anomalous Magnetic MomentCambridge Massachusetts, United States of AmericaCalculates the leading quantum-electrodynamic correction to the electron magnetic moment with striking agreement to experiment.
1950Edward Purcell
Physicist
First Neutron EDM MeasurementOak Ridge, United States of AmericaWith Smith and Ramsey, carries out the first neutron electric-dipole-moment measurement.
1950Norman Ramsey
Physicist
First Neutron EDM MeasurementOak Ridge, United States of AmericaWith Smith and Purcell, measures a stringent early limit on the neutron electric dipole moment.
1950Andrei Dmitrievich Sakharov
Theoretical Physicist
Magnetic Fusion ConfinementMoscow, RussiaThe achievement marks magnetic fusion confinement as an important Russian scientific milestone.
1950Andrei Dmitrievich Sakharov
Theoretical Physicist
Tokamak ConceptMoscow, RussiaCo-proposes the tokamak approach for confining hot plasma with magnetic fields.
1950James H. Smith
Physicist
First Neutron EDM MeasurementOak Ridge, United States of AmericaWith Edward Purcell and Norman Ramsey, performs the first experimental search for a neutron electric dipole moment.
1951Albert Einstein
Physicist
Unified Field Equations RefinementPrinceton, United States of AmericaRefines asymmetric-field approaches intended to combine gravitation and electromagnetism.
1951Clifford Shull
Physicist
Antiferromagnetic Neutron DiffractionOak Ridge, United States of AmericaUses neutron diffraction to reveal magnetic ordering in manganese oxide and confirm antiferromagnetism.
1951Wilbur Strauser
Physicist
Manganese Oxide Magnetic StructureOak Ridge, United States of AmericaWorks with Shull and Wollan to determine manganese oxide antiferromagnetic structure using neutrons.
1951Ernest Wollan
Physicist
Manganese Oxide Magnetic StructureOak Ridge, United States of AmericaUses neutron scattering with Shull and Strauser to reveal antiferromagnetic order in manganese oxide.
1955Francois Englert
Theoretical Physicist
Engineering DegreeBrussels, BelgiumGraduates from the Universite Libre de Bruxelles as a civil electrical-mechanical engineer.
1 October 1957Edward Purcell
Physicist
Neutron EDM Result PublishedUnited States of America, United States of AmericaPublishes the early neutron EDM limit obtained from magnetic-resonance measurements.
1 October 1957Norman Ramsey
Physicist
Neutron EDM Result PublishedUnited States of America, United States of AmericaPublishes the first-generation experimental limit on the neutron electric dipole moment.
1 October 1957James H. Smith
Physicist
Neutron EDM Result PublishedUnited States of America, United States of AmericaPublishes the neutron electric-dipole-moment limit measured with Purcell and Ramsey.
1958Philip Warren Anderson
Physicist
Electron Localization in DisorderMurray Hill, United States of AmericaShows that disorder can localize electron wavefunctions and suppress electrical conduction, now called Anderson localization.
1959Yakir Aharonov
Physicist
Aharonov-Bohm Electron Phase EffectBristol, IsraelWith David Bohm, predicts that electron interference can depend on electromagnetic potentials even where the electrons traverse no magnetic field.
1960Robert G Chambers
Physicist
Electron Interference Test of Magnetic FluxBristol, Great BritainUses electron interference around a magnetic whisker to obtain early experimental evidence for the Aharonov-Bohm phase effect.
1965Ezra Newman
Physicist
Kerr-Newman MetricUnited States of AmericaWith collaborators, obtains the rotating electrically charged black hole solution now called the Kerr-Newman metric.
1967Steven Weinberg
Theoretical Physicist
Weak MixingCambridge, Massachusetts, United States of AmericaRelates electromagnetic and weak interactions through a common gauge framework whose parameters include the weak mixing angle.
10 December 1970Hannes Olof Gosta Alfven
Plasma Physicist
Magnetohydrodynamics RecognitionStockholm, SwedenIs recognized for discoveries concerning plasma and magnetic-field interactions.
10 December 1970Hannes Olof Gosta Alfven
Plasma Physicist
Nobel Prize in PhysicsStockholm, SwedenShares the physics prize for foundational work in magnetohydrodynamics.
1970Hannes AlfvenNobel PrizeStockholm, SwedenShares the Nobel Prize in Physics for fundamental work and discoveries in magnetohydrodynamics and plasma physics.
1972Saul Arno Teukolsky
Physicist
Teukolsky EquationCalifornia Institute of Technology, United States of AmericaTeukolsky derives separable equations for electromagnetic and gravitational perturbations of rotating Kerr black holes.
15 October 1977Don Page
Physicist
Charged Lepton EmissionCanadaCalculates Hawking emission of electrons and muons from a nonrotating black hole and analyzes fluctuations in the hole's electric charge.
10 December 1979Abdus Salam
Theoretical Physicist · Nobel Laureate
Nobel PrizeStockholm, PakistanShares the Nobel Prize in Physics with Sheldon Glashow and Steven Weinberg for contributions to unified weak and electromagnetic interactions.
1980Klaus von Klitzing
Physicist
Integer Quantum Hall EffectGrenoble, GermanyDiscovers precisely quantized Hall resistance in a two-dimensional electron system at low temperature and high magnetic field.
1986Akira Tonomura
Physicist
Shielded Aharonov-Bohm Electron ExperimentTokyo, JapanUses electron holography with shielded magnetic flux to demonstrate the Aharonov-Bohm phase shift without electrons entering the magnetic field.
1988Albert Fert
Physicist
Giant Magnetoresistance Electron Spin TransportOrsay, FranceCo-discovers giant magnetoresistance, showing that electrical resistance can depend strongly on electron spin in magnetic multilayers.
1988Peter Grunberg
Physicist
Giant Magnetoresistance DiscoveryJulich, GermanyIndependently discovers giant magnetoresistance in magnetic multilayers, demonstrating strong spin-dependent electron transport.
2001Hartmut Haffner
Physicist
Bound Electron g-Factor MeasurementMainz, GermanyHelps measure the magnetic moment of a bound electron in hydrogenlike carbon with a Penning trap, providing a precision test of strong-field quantum electrodynamics.
7 March 2005Lyn Evans
Physicist
Large Hadron Collider Magnet InstallationGeneva, Great BritainOversees the project as the first superconducting dipole magnet is lowered into the Large Hadron Collider tunnel.
25 August 2005Lyn Evans
Physicist
Large Hadron Collider InstallationGeneva, Great BritainSees major detector magnet milestones reached for ATLAS and CMS while installation of the Large Hadron Collider continues.
2006Gerald Gabrielse
Physicist
Single-Electron Magnetic Moment MeasurementCambridge Massachusetts, United States of AmericaUses a single trapped electron to make an exceptionally precise measurement of the electron magnetic moment.
December 2007Albert Fert
Physicist
Nobel Prize for Giant MagnetoresistanceStockholm, FranceShares the Nobel Prize in Physics for discovery of giant magnetoresistance and spin-dependent electron transport.
December 2007Peter Grunberg
Physicist
Nobel Prize for Giant MagnetoresistanceStockholm, GermanyShares the Nobel Prize in Physics for discovery of giant magnetoresistance.
19 September 2008Lyn Evans
Physicist
Large Hadron Collider IncidentGeneva, Great BritainSees an electrical connection failure cause serious damage in one Large Hadron Collider sector, forcing an extended repair programme.
2008David Hanneke
Physicist
Improved Electron g-Factor MeasurementCambridge Massachusetts, United States of AmericaWith collaborators, improves the precision measurement of the electron magnetic moment using a single trapped electron.
2025John ClarkeNobel PrizeStockholm, Great BritainShares the Nobel Prize in Physics for discovering macroscopic quantum tunnelling and energy quantisation in an electric circuit.
2025Michel H. DevoretNobel PrizeStockholm, FranceShares the Nobel Prize in Physics for discovering macroscopic quantum tunnelling and energy quantisation in an electric circuit.
2025John M. MartinisNobel PrizeStockholm, United States of AmericaShares the Nobel Prize in Physics for discovering macroscopic quantum tunnelling and energy quantisation in an electric circuit.

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