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Chronology of the Isaac Newton Group of Telescopes

Isaac Newton Telescope
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25 Dec 1642 Isaac Newton born
1672 Isaac Newton builds the first reflector telescope
1675 The Royal Observatory founded at Greenwich by King Charles II
20 Mar 1727 Death of Isaac Newton
1856 First astronomical observations in the Canary Islands by Charles Piazzi Smyth 
1945-46 Proposal for large telescope for use of all British astronomers
1946 Jul 7 First day of official celebration of tercentenary of Newton's birth. Announcement that funds voted for construction of 100-inch telescope
1948-1958 The Royal Observatory is moved from London to Herstmonceux Castle in Sussex, and renamed the Royal Greenwich Observatory
1949 McGregor Fundation donates 98-inch glass mirror blank (originally intended for telescope for Michigan University Observatory)
1959 Isaac Newton Telescope ordered
1967 INT Inauguration at Herstmonceux
Jan Hermann Brück, Astronomer Royal for Scotland, first proposes the construction of a Northern Hemisphere Observatory (NHO) 
1 Dec Isaac Newton Telescope is inaugurated by Queen Elizabeth II
Jan Formal start of the project 'Northern Hemisphere Observatory (NHO)'. Sir Fred Hoyle takes the chair at the first meeting of the Northern Hemisphere Review Committee
Apr John Alexander of the Royal Greenwich Observatory visits La Palma
Aug Professor M.F. Walker of Lick Observatory, California includes La Palma in a list of oceanic islands that might be used as astronomical sites 
JOSO site testers visit La Palma 
Nov  Flight over the mountain top in La Palma by JOSO (Joint Organization for Solar Observations) team
Dec John Alexander states: "The ideal solution may be an international observatory site on the island of La Palma." 
2 Jul First astronomical observations on Roque de Los Muchachos peak. They were carried out by a JOSO team consisting of G. Hosinsky, L. Staveland and H. Wöhl from Jul 2 to Jul 21
11 Jul First British astronomers arrive in La Palma
6 Aug First observations by the British site-testing team. These were carried out by Dr T. T. Gough and Mr C. M. Heath of the Royal Observatory, Edinburgh in Fuente Nueva, where the ING telescopes are erected today
May The NHO Planning Committee decides not to consider La Palma any more due to deep pessimism about the prospects for agreement on the use of La Palma site
Aug After high international activity, Spanish authorities issue an invitation to form a Joint Astronomical Site Survey to undertake an international programme of site testing on the Canary Islands
Nov The proposals for the present WHT, INT and JKT are accepted by the Science Research Council
25 Nov Site testing observations begin in Fuente Nueva
Dec Representatives of Denmark, Sweden, Germany and the United Kingdom are invited by the Rector of the University of La Laguna and the Presidents of the local Governments (Cabildos) of Tenerife and La Palma to discuss arrangements for the survey programme. During a aircraft flight above the Roque de Los Muchachos peak, these representatives "[...] felt that this must be the site for the new observatory"
Nov Tests for night site observing are completed
4 Mar INT closed down at Herstmonceux
26 May Almost 10 years after the first committee met to consider a Northern Hemisphere Observatory, a treaty governing its establishment is signed. Spain agrees to let Denmark, Sweden, and Britain build on La Palma, in exchange for 20 percent of the observing time. The treaty is signed in the Cabildo of la Palma 
4 Jun INT is dismantled and transferred to Newcastle for modification prior to shipment to La Palma
Completion of INT new mirror at Grubb Parsons.
18 Jun SERC-ZWO agreement signed. They agree to share all the parts of the projects, including the construction, operation and use of the telescopes, each providing manpower, capital and running costs in the ratio 4:1.
Jul Isaac Newton Telescope installation begins
September First RGO staff come to live on La Palma
September First Dutch technician begins work at Herstmonceux under Anglo-Dutch collaborative programme
10 Dec INT primary mirror arrives on La Palma
23 Jan Hand-over from the building contractor of INT building
September La Palma Observers' Guide issued
Nov First light through the Carlsberg Automatic Meridian Circle
INT observes quasar Q0055-269, one of the most distant objects known in the universe (z=3.68). [more]
13/14 Feb 2.5-m Isaac Newton Telescope first light on La Palma. Its first views included the Crab Nebula, the Orion Nebula and the galaxies M51 and NGC 4151.
Mar First astronomical spectra obtained with INT Cassegrain spectrograph. First use of the Image Photon Counting System (IPCS) device on La Palma.
Apr Patrick Moore films Sky at Night on La Palma
29 May First scheduled observing on INT 
JunFirst CCD detector in use at ING
Nov First refereed paper using results from the ING telescopes: M V Penston & E Pérez, "An evolutionary link between Seyfert I and II galaxies?", MNRAS, 211, 33 (based on data obtained using the Isaac Newton Telescope).
Dec Faint-object spectrograph commissioned on Isaac Newton Telescope
First ever images from optical aperture synthesis [more]
Apr TAURUS commissioned on Isaac Newton Telescope
Jun  Completion of road to Roque de Los Muchachos Observatory
29 Jun Royal Inauguration of the Roque de Los Muchachos Observatory on La Palma
Jul First prime-focus images with Isaac Newton Telescope and CCD camera
Aug Opening of Residencia on Roque de Los Muchachos Observatory
INT observes an emission-line object in the core of M15 star cluster as the source responsible for the detected emission in X-ray. This object is later identified as a binary system [more ]
Li and Be abundance measurements give clues on cosmological evolution [more ]
31 OctThe Spanish Government approves the Sky Law
INT discovers a quasar of redshift 4.7 which is the brightest object in the Universe at optical wavelengths [more ]
INT obtains the ever deepest B image [more ]
RGO moves to Cambridge
13 Mar The regulation of the Sky Law is approved by the Spanish Government
SN 1993J was the closest core-collapse supernova to have occurred this century and observable from the north. ING telescopes immediately set in motion an extensive programme of astrometric, photometric (UVBRI) and low- and high- dispersion spectroscopic monitoring. The INT spectrum of SN1993J obtained one day after the discovery was the first recorded anywhere at any wavelength. A public on-line archive consisting of optical photometric and spectroscopic data is offered to the community. Over 70 sites worldwide have availed themselves of this unique facility [more
A major campaign is undertaken to observe the impact on Jupiter of Comet Shoemaker-Levy 9 [more]
First ever spectroscopic map of an accretion-disk in a cataclysmic variable [ more]
First ever observations of a brown dwarf [more]
The deepest ground-based image in B-band [more]
First detection of spiral waves in stellar accretion disc [more ]
28 Feb First detection of a gamma-ray burst in optical light [more ]
MayFirst light on the Wide-Field Camera, a mosaic of 4 CCDs. [more ]
By observing distant type Ia supernovae, astronomers determine that the universe is expanding at an accelerating rate - an observation that implies the existence of a mysterious, self-repelling property of space first proposed by Albert Einstein, which he called the cosmological constant. This extraordinary finding is named by the journal 'Science' as Breakthrough of the Year for 1998 [more]
APM 08279+5255: a quasar about 100 times brighter than the next brightest object that has ever been observed [more ]
31 Oct Closure of RGO.
A new Local Group galaxy: The Cetus Dwarf Galaxy [more]
September First sodium laser beacon at La Palma [more]
Discovery of a Type Ia supernova progenitor [more]
23 Jul Comet Linear blows up in full view of the JKT one billion light years of the Universe [more]
A giant stream of metal-rich stars in the halo of the galaxy M31 [more]
Completely dark galaxies [more]
Tidal streams in the Galactic halo [more]
International review of ING [more]
7-11 May First scientific conference organised by ING [more]
20 Oct Science from La Palma - Past, Present and Future, a workshop organised by ING in honour of Dr Paul Murdin. [more]
27-31 May A Euroconference Organised by the ING: “Symbiotic Stars Probing Stellar Evolution”, La Palma, 27–31 May 2002 [more]
Aug RoboDIMM starts observing [more]
A huge ring surrounding the Milky Way [more]
9-11 Jan NAOMI Workshop [more ]
6 May Signing of agreement with IAC to become a partner
26-30 May Satellites and Tidal Streams, an ING–IAC Joint Conference [more ]
17 Jul Decommissioning of IDS
23 Aug BBC's All Night Star Party ! [more]
Rings in the Haloes of Planetary Nebulae [more]
The Largest Known Planetary Nebula on the Sky [more]
23 Nov First light on NAOMI's pyramid wavefront sensor [more]
9-11 May Adaptive-Optics Assisted Integral-Field Spectroscopy Workshop [more ]
6-10 Jun 2nd Meeting on Hot Subdwarf Stars and Related Objects Conference [more ]
4 Jul Deep Impact mission observed at ING [more ]
11 Aug A Jet-Powered Bubble Formed in the Gas Around Black Hole Cygnus X-1 [more ]
14 Oct RAS Specialist Discussion Meeting on "Science from La Palma - Looking beyond 2009" [more ]
A Gaseous Metal Disk Around a White Dwarf [more]
4 Apr Users' meeting at NAM 2006: Astronomy from La Palma: Developments and future directions
16-19 May Conference: The nature of V838 Monocerotis and its light echo [more]
1 Aug IDS spectrograph back to operation on the INT
10-16 Dec IAU Symposium 241: Stellar Populations as Building Blocks of Galaxies [more]
The YORP Effect Detected on Near-Earth Asteroid 2000 PH5 [more]
1 Apr The UK's Science and Technology Facilities Council (STFC) replaces the Particle Physics and Astronomy Research Council (PPARC) as ING's owner.
18-22 Jun Conference: Asymmetrical Planetary Nebulae IV [more]
3 Dec IPHAS Initial Data Release [more]
  First results from the H-alpha galaxy survey [more]
  Detection of naphtalene cation in the interestellar medium [more]
  The extreme Kuiper-Belt binary 2011 QW322 [more]
9 Oct First light on ExPo [more]
  First ground-based near-infrared direct detection of an extrasolar planet [more]
  First ever spectrum of an asteroid which hit the Earth [more]
  First spectroscopic observations using an electron-multiplying CCD [more]
  Earth's transmission spectrum from lunar eclipse observations [more]
  ING joins the International Year of Astronomy [more]
9 Jun First light on ACAM [more]
15 Jul New director for the ING [more]
  First ground-based near-infrared direct detection of an extrasolar planet [more]
  Super-Complex Organic Molecules Found in Interstellar Space [more]
  Comet P/2010 A2, an Activated Asteroid from the Main Asteroid Belt [more]
  PLC Technology Reduces Observing Overheads [more]
19 Sep First On-Sky Demonstration of Multi-Object Adaptive Optics [more]
  Discovery of a new class of supernovae [more]
  The ATLAS3D Project: Replacing the Handle of Hubble’s Tuning Fork [more]
  ING Joins Efforts with GTC to Discover a Galactic Black Hole [more]
29 May Wide-Field Multi-Object Spectrograph WEAVE Proposed for WHT Prime Focus [more]
The Kepler-INT Survey [more]
A 3D View of the Remnant of Nova Persei 1901 [more]
First Evidence of the Relation Between Jets in Planetary Nebulae and Mass Transfer and Accretion in Close Binaries [more]
22-23 March Workshop: La Palma and Calar Alto Observatories, Science in the Next Decade [more]
The Isaac Newton Telescope Contributes to Near Earth Asteroid Research [more]
ING Science Strategy 2013 - 2022 [more]
RATS-Kepler - A Deep High-Cadence Survey of the Kepler Field [more]
3D Map Shows Dusty Structure of the Milky Way [more]
Astronomers Release Most Detailed Catalogue Ever Made of the Visible Milky Way [more]
21 Aug Report on instrumentation at the ING Telescopes [more]