Bringing Science in the Heart of the Young, EEE – The Extreme Energy Events Project (2004–2024)

1. The EEE Project: How it began 2. Putting into reality the original idea: Involving scientific Institutions and high school teams 3. The overall architecture of the EEE detector network 4. Construction of the MRPC telescopes, a long-term involvement of researchers and high school teams at CERN 5. The Multigap Resistive Plate Chambers for the EEE Project 6. Electronics and data acquisition for the EEE network 7. Reconstruction and analysis software for the EEE network 8. Installing and getting ready MRPC telescopes over the Italian territory 9. Measuring the cosmic ray flux with MRPC telescopes 10. Cosmic ray flux and the effect of the atmospheric pressure 11. Observation of Forbush decreases by the EEE telescopes 12. Detecting extensive air showers by telescope coincidences 13. Searching for long-distance correlations between telescopes 14. Searching for small anisotropies in the cosmic ray flux 15. Search for upward-going particles 16. Upgrade activities of the EEE network along two decades 17. New ecological gas mixtures for the MRPC telescopes 18. Complementing the EEE network with the POLA-R detectors 19. The PolarQuEEEst expedition 20. Measuring the cosmic ray flux over a wide latitude range with the POLA-R detectors 21. Installing and using POLA-R detectors at the Svalbard 22. Observing the effect of the Hunga Tonga volcanic eruption at Ny-˚Alesund with the EEE station 23. Using MRPC telescopes as a tracking device for investigating the stability of civil buildings 24. Using MRPC telescopes as a muon test facility 25. A set of Cosmic Box detectors for on-site measurements 26. The altitude dependence of the cosmic ray flux investigated by a set of Cosmic Box 27. Underground measurements with the Cosmic Box 28. Dissemination of scientific and technical knowledge within the EEE high school teams 29. Public events and outreach activities outside the EEE environment 30. What next?