The main aim of the project is the presentation and promotion of cultural contacts in the past. The activities will be focused around the period of the 5th to 2nd century BC on the territory between Central Europe and the Southern Balkans when the influences of the two greatest creative and military powers of that period met. The Clash of Cultures is a story about the profound difference of cultures which for centuries coexisted, influenced on the other and were finally absorbed by the unification processes of the culture of the Roman republic. It is the story about the nature of contact of the European prehistoric world with the civilizations of the Mediterranean.The nature and the intensity of these contacts will be demonstrated with a series of activities – with a traveling exhibition and a series of local exhibitions. The traveling exhibition will focus on the gradation and nature of cultural contacts between the central and South-eastern Europe – this demonstration will be supplemented with a series of four regional exhibitions demonstrating the decline of Celtic and the increase of Macedonian influences on four major archaeological sites in the region. The highlight of the project will be a presentation of the Macedonian imperial culture as reflected by recent finds in Macedonia.The nature of these contacts and their importance for the creation of the European cultural heritage will be presented, discussed and summarized on two seminars. The results of the seminars will be published as a compilation of articles with major contributions to the understanding of European cultural history.The results of the project will be the presentation and the promotion of neglected processes of cultural contacts which mostly violently but often peacefully created the multicultural communities inhabiting the territory of the Balkan peninsula in the past – multicultural communities created from the Clash of Cultures.