Expo 91

The International Exhibition in Plovdiv was an international exhibition that was held from June 7 to July 7 of 1991 in the city of Plovdiv, Bulgaria, under the theme of "The creative activity of young inventors at the service of a world peace." The exhibition was coordinated by the Bureau International des Expositions.

Organizers
The organizers of the exhibition were:
 * The Ministry of Economy and Planning of Bulgaria
 * The Chamber of Commerce and Industry of Bulgaria
 * The Republican Council of scientific and technical creativity of the youth of Bulgaria
 * International Foundation "Ludmila Jivkova"
 * The Institute of inventions and rationalizations.

The exhibition was organized with the cooperation of the World Intellectual Property Organization, a specialized agency of the United Nations.