Gravitational science: from Aristotle to A.D.Sakharov and further on

This is my point of view on the history of the gravitational science. Starting from Aristotle with his (failured) attempts to understand the ocean tides, through the enormous efforts by Copernicus, Galileo and Kepler to Hook, then to Newton with his self-consistent theory of the universal gravity and, finally, to the Einstein's revolutionary relativistic gravitational theory (the role of Hilbert and Grossmann is also stressed). the new possible extensions began with the work by Sakharov in 1967. At the end I briefly mention some modern (sometimes they are actually old) ideas.