Four Decades of Colliders (from the ISR to LEP to the LHC)

I briefly describe CERN's colliders starting with the ISR, going through LEP, and finishing with the LHC. I describe the incredible impact on accelerator physics of the almost forgotten, first ever hadron collider, the ISR. I also describe the 12 years of operation of LEP. Finally I provide the latest results of beam operation in the LHC as well as the plans for the near and far future.