argued that one of the central aims of the Chronicle’s narrative is to “give an explanation how the Rurikids came to power in the lands of the Slavs, why the dynasty was the only legitimate one and why all the princes should terminate their internal fights and rule in peace and brotherly love.” The early part of the RPC features many anecdotal stories, among them: those of the arrival of the three Varangian brothers, the founding of Kyiv the murder of Askold and Dir, ca. 882 the death of Oleg in 912, the "cause" of which was reported foreseen by him the thorough vengeance taken by Olga, the wife of Igor, on the Drevlians, who had murdered her husband; (Her actions secured Kievan Rus' from the Drevlians, preventing her from having to marry a Drevlian prince, and allowing her to act as regent until her young son came of age.) The account of the labors of Saints Cyril and Methodius among the Slavic peoples also makes a very interesting tale, and to Nestor we owe the story of the summary way in which Vladimir the Great (ruled 980 to 1015) suppressed the worship of Perun and other traditional gods at Kyiv. Second edition In the year 1116, Nestor's text was extensively edited by the hegumen Sylvester who appended his name at the end of the chronicle. As Vladimir Monomakh was the patron of the village of Vydubychi (now a neighborhood of Kyiv) where Sylvester's monastery was situated, the new edition glorified Vladimir and made him the central figure of later narrative. This second version of Nestor's work is preserved in the Laurentian codex (see ). Third edition A third edition followed two years later and centered on the person of Vladimir's son and heir, Mstislav the Great. The author of this revision could have been Greek, for he corrected and updated much data on Byzantine affairs. This latest revision of Nestor's work is preserved in the Hypatian codex (see ). Surviving manuscripts Because the original of the chronicle as well as the earliest known copies are lost, it is difficult to establish the original content of the chronicle. The two main sources for the chronicle's text as it is known presently are the Laurentian Codex and the Hypatian Codex. Laurentian Codex The Laurentian Codex was compiled in what are today Russian lands by the Nizhegorod monk Laurentius for the Prince