Школа для детей в Новгороде
The first chronicle of Sofia about the school in Novgorod provides some information:
1028. «In the year 6536, Yaroslav went to Novgorod and gathered 300 children from elders and priests to teach them with books.».
Yaroslav’s school was based on a network of elementary literacy schools, as evidenced by the large number of birch bark letters, written and wax tablets discovered by archaeologists.
The widespread literacy in Novgorod led to a flourishing of book culture. The famous Ostromir Gospel, Dobrynya’s description of Tsargrad, and Kirika’s mathematical treatise were written in Novgorod. The “Izbornik of 1073,” the initial chronicle, and the brief edition of “Russian Pravda” have been preserved for posterity. Novgorod’s libraries served as one of the main sources for the “Great Chetiya Miney” – a collection of “all books read in Rus,” consisting of twelve huge volumes with a total volume of over 27 thousand pages.wikipedia
The library of St. Sophia Cathedral in Kiev
According to “The Tale of Bygone Years”:
In the year 6545 , Yaroslav founded a great city with the Golden Gate and the church of St. Sophia…
Yaroslav loved the church canons and priests, especially the black-robed ones, and he showed great diligence in books, often reading them day and night. He collected a large number of scribes who translated from Greek to Slavic. And they wrote many books that the faithful people learn from…
…As we said, Yaroslav loved books and, having copied many of them, placed them in the church of St. Sophia, which he built himself.
The exact volume of the library is unknown. In the 1982 edition of “The History of Kiev,” it was estimated at 950 volumes, while historian E. E. Golubinsky suggested a probable figure of 500 books. According to the well-known Leningrad bibliographer M. Rozov, some of Yaroslav’s library works may be in the Russian National Library named after Saltykov-Shchedrin.wikipedia