Abstract
Since the late 19th century, the ULA have set themselves the goal of creating an astronomical observatory to increase the educational level of students and establish the foundations to develop systematic research in Astronomy. Throughout the 20th century several attempts have been made to reach an old dream of the institution. However, the difficulties faced by each of the proponents, in their respective historical periods, have delayed it. A brief analysis of the characteristics of each of the six projects found in the various institutional files, the teachers that promoted them, and some of the characteristics of each, is presented.
