Neacșu's letter (Romanian: Scrisoarea lui Neacșu), written in 1521, is the oldest surviving document available in Old Romanian that can be reliably dated. Written using Cyrillic, it was sent by Lupu Neacșu, a merchant from Câmpulung, Wallachia (now Romania) to Johannes Benkner, the mayor of Brassó, Kingdom of Hungary (now Brașov, Romania), warning him about the imminent attack of the Ottoman Empire on the city of Belgrad and its implications to regional politics.  Read more..

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