HERA History

1981 Proposal for a e/p collider at DESY

1991 Commissioning of the proton storage ring

Oct. 1991 First e/p collisions

1992 Detectors H1 & ZEUS „on beam2

1994 Installation of Spin rotators in section east

1995 HERMES Experiment

1996 HERA-B Experiment

1998 Proton energy increased to 920 GeV

1999 Design luminosity

2000 L ? 2* 10 ^31 cm^-2 sec^-1