What should the world remember Serbia for? Which documents, manuscripts, archives and collections deserve to be included in the documentary heritage of universal value? All this is written in the "Memory of the World" program, which was launched by UNESCO in 1992.

That list includes Miroslav's Gospel, Nikola Tesla's Archive and the Telegram of Austria-Hungary's declaration of war on Serbia.

The oldest document from Serbia that found its place on the UNESCO list is a liturgical book that was written and decorated in 1180 by order of Prince Miroslav. The Cyrillic text, handwritten with pen and ink, is accompanied by almost 300 illustrations of religious themes. Apart from the artistic value, these miniatures also have great historical significance. Miroslav's Gospel is kept in the National Museum in Belgrade, while phototype editions in a circulation of 299 copies can be found in elite libraries around the world.

The list includes a rich archive of one of the world's greatest minds. Nikola Tesla left behind more than 16,000 original documents, historical-technical exhibits, photographs, books, magazines. The archive of the famous scientist is kept in the Nikola Tesla Museum in Belgrade, which presents visitors with some of Tesla's most important inventions, as well as items from his private life.

The telegram that formally marked the beginning of the First World War is also under UNESCO protection. The Austria-Hungary’s declaration of war on Serbia written in French in a few lines was sent on July 28, 1914 from Vienna to Serbian Minister of Foreign Affairs in Niš. It is kept in the Archives of Serbia in Belgrade.

The World Documentary Heritage register is the equivalent of the World Heritage List of immovable properties of cultural importance.