CERN
European research centre in Switzerland
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| March 2025 | Chile and Ireland were approved as new Associate Member States of CERN, subject to completion of accession and ratification processes. |
| March 13 2024 | Brazil became the first associate member of CERN from the Americas. |
| 2023 | CERN reached a staffing milestone with 2,666 scientific, technical, and administrative staff members, and hosted approximately 12,370 users from over 80 countries. |
| October 2023 | CERN Science Gateway was opened, becoming the organization's latest facility for science outreach and education, featuring immersive exhibits, workshops, and shows. |
| 2022 | CERNLIB code was revitalized with multiple patches added, enabling compilation on multiple architectures using either the native imake build system or CMake. |
| September 18 2022 | The Microcosm museum closed permanently in preparation for the installation of exhibitions in the Science Gateway. |
| March 2022 | Brazil signed the associate membership agreement with CERN. |
| March 25 2022 | CERN Council passes a resolution suspending JINR (Joint Institute for Nuclear Research). |
| August 2 2021 | Latvia was formally admitted as an Associate Member of CERN. |
| April 14 2021 | Latvia and CERN signed an associate membership agreement. |
| 2020 | The European Strategy for Particle Physics is updated, affirming CERN's role in the open science landscape and calling for implementation of open science policies in particle physics. |
| October 10 2019 | Croatia ratified its association agreement with CERN. |
| February 28 2019 | Croatia was approved for admission as an Associate Member state at CERN. |
| 2018 | SCOAP3 partnership reaches 3,000+ libraries from 44 countries and 3 intergovernmental organizations, converting research articles in high-energy physics to open access across 11 leading journals. |
| 2018 | A second two-year period of shutdown began at the end of the year. |
| January 8 2018 | Lithuania ratified its associate membership agreement with CERN. |
| 2017 | One of CTF3's beamlines was converted into the CERN Linear Electron Accelerator for Research (CLEAR) facility. |
| July 4 2017 | Slovenia ratified its associate membership agreement with CERN. |
| June 27 2017 | Lithuania signed its associate membership agreement with CERN. |
| June 16 2017 | Lithuania was approved for admission as an Associate Member state at CERN. |
| February 2017 | Howie Day re-recorded his song 'Collide' with the new CERN-inspired lyrics and released a video created during his visit to CERN. |
| January 16 2017 | India ratified its association agreement with CERN. |
| 2016 | LHC exceeded its design collision rate for the first time. |
| 2016 | CERN generated 49 petabytes of data, demonstrating its significant computational and research capabilities. |
| December 16 2016 | Slovenia was approved for admission as an Associate Member state in the pre-stage to membership at CERN. |
| November 21 2016 | India signed an association agreement with CERN. |
| October 5 2016 | Ukraine ratified its association agreement with CERN. |
| April 1 2016 | Cyprus became an associate member in the pre-stage to membership at CERN. |
| 2015 | Ryoji Ikeda created an art installation called 'Supersymmetry' based on his experience as a resident artist at CERN. |
| 2015 | Sarah Charley, US communications manager for LHC experiments at CERN, along with graduate students Jesse Heilman, Tom Perry, and Laser Seymour Kaplan, created a parody music video based on Howie Day's song 'Collide', from the perspective of a proton in the Large Hadron Collider. |
| July 31 2015 | Pakistan became an associate member of CERN. |
| May 6 2015 | Turkey became an associate member of CERN. |
| April 10 2015 | First ramp to the record-breaking energy of 6.5 TeV was performed. |
| April 5 2015 | LHC restarted after two years of maintenance and consolidation. |
| 2014 | CERN publishes its open access policy, ensuring all publications by CERN authors will be published with gold open access. |
| December 19 2014 | Pakistan signed an association agreement with CERN. |
| May 12 2014 | Turkey signed an association agreement with CERN. |
| January 2014 | Israel becomes the first non-European full member of CERN, marking a significant expansion of the organization's international reach. |
| 2013 | Israel was admitted as a full member of CERN, becoming the first and only full member located geographically outside of Europe. |
| October 3 2013 | Ukraine signed an association agreement with CERN. |
| March 2013 | CERN confirmed that the newly found particle was a Higgs boson and deactivated the LHC for a two-year maintenance period. |
| 2012 | The 600 MeV Synchro-Cyclotron (SC) was converted into a public exhibition. |
| October 5 2012 | Cyprus signed an association agreement with CERN. |
| July 2012 | CERN scientists announced the discovery of a new sub-atomic particle, later confirmed to be the Higgs boson. |
| March 2012 | LHC increased to 8 TeV (4 TeV per proton) and began particle collisions at that energy. |
| March 30 2010 | LHC successfully collided two proton beams with 3.5 TeV of energy per proton, resulting in a 7 TeV collision energy. |
This contents of the box above is based on material from the Wikipedia articles CERN & CERN Program Library, which are released under the Creative Commons Attribution-ShareAlike 4.0 International License.