Fifty years of model theory. (Cinquantâ€™anni di teoria dei modelli.) (Italian)

Boll. Unione Mat. Ital., Sez. A, Mat. Soc. Cult. (8) 7, No. 2, 347-381 (2004).

What is Model Theory? And why has it been fascinating several mathematicians since its beginning, more or less 50 years ago? This paper sketches a short history of Model Theory during these 50 years, and attempts an answer to the previous questions. (orig.)