  A history and drama of the development of quantum probability theory is
outlined starting from the discovery of the Plank's constant exactly a 100
years ago. It is shown that before the rise of quantum mechanics 75 years ago,
the quantum theory had appeared first in the form of the statistics of quantum
thermal noise and quantum spontaneous jumps which have never been explained by
quantum mechanics. Moreover, the only reasonable probabilistic interpretation
of quantum theory put forward by Max Born was in fact in irreconcilable
contradiction with traditional mechanical reality and classical probabilistic
causality. This led to numerous quantum paradoxes, some of them due to the
great inventors of quantum theory such as Einstein and Schroedinger. They are
reconsidered in this paper from the modern quantum probabilistic point of view.
