Amir Pnueli and the Dawn of Hybrid Systems Oded Maler I describe the contributions of the late Amir Pnueli to the initiation of research on the verification of hybrid (discrete-continuous, locial-numerical) systems, a reunion in the Nineties of some branches of computer science, control theory and applied mathematics. These domains were closely related in the cybernetic Sixties, but diverged subsequently as computer science became an independent discipline. The talk will also give the basics of verification and enumerate the challenges of extending it to continuous and hybrid systems.