  This lecture will present a review of the past and present tests of the
General Relativity theory. The essentials of the theory will be recalled and
the measurable effects will be listed and analyzed. The main historical
confirmations of General Relativity will be described. Then, the present
situation will be reviewed presenting a number of examples. The opportunities
given by astrophysical and astrometric observations will be shortly discussed.
Coming to terrestrial experiments the attention will be specially focused on
ringlasers and a dedicated experiment for the Gran Sasso Laboratories, named by
the acronym GINGER, will be presented. Mention will also be made of
alternatives to the use of light, such as particle beams and superfluid rings.
