the Seimas of the Grand Duchy of Lithuania in Vilnius. The Statute of Lithuania has been drafted under the guidance of Grand Chancellor of Lithuania Albertas Goštautas and in accordance with the courts' jurisprudence formed by customary law, Heads of State legislation on certain matters and by the provisions of the canon law and Roman law regulations. It is the first official codification of this kind of secular law in Europe. Lithuanian nationalist Albertas Goštautas actively supported the Lithuanian language usage in the Lithuanian literature and protected Lithuanian authors, including Abraomas Kulvietis and Michael the Lithuanian, who criticised the usage of Old Slavonic church language and called refugees Old Believers as the Muscovian spies in his book De moribus tartarorum, lituanorum et moscorum. Since the 16th century, the Lithuanian Metrica was kept at the Lower Castle and safeguarded by the State Chancellor. Due to the deterioration of the books, the State Grand Chancellor, Lew Sapieha, ordered the volumes of the Metrica to be recopied in 1594. The recopying process continued until 1607. The newly recopied books were inventoried, rechecked, and transferred to a separate building in Vilnius, with the older books remaining in the Castle of Vilnius. According to the 1983 data, 665 books have remained until the nowadays and their microfilms are preserved at the Lithuanian State Historical Archives in Vilnius. Over 200 tiles and commemorative plaques to writers, who have lived and worked in Vilnius, and foreign authors, who have shared a connection with Vilnius and Lithuania, adorn walls on Literatų Street () in the Old Town, presenting a broad overview of the history of Lithuanian literature. The Institute of Lithuanian Literature and Folklore and the Lithuanian Writers' Union are located in Vilnius. The biggest book fair in Baltic states is annually held in Vilnius at LITEXPO, the Baltic's biggest exhibition centre. Cinema The very first public film session in Vilnius was held in the Botanical Garden (now Bernardinai Garden) in the summer of 1897. It is notable that such an event was held in Vilnius soon after the very first film sessions in the world by Auguste and Louis Lumière, who held it in Paris in 1895. Vilnius film session also showed the Lumière brothers documentary movies. Firstly shown movies were educational and were filmed in exotic locations (e.g. India, Africa) and introduced different cultures to Vilnians, who enjoyed the movies because very few were able to