familiarity with the historical events surrounding the Time of Troubles – the interregnum period of relative anarchy following the end of the Rurik Dynasty (1598) and preceding the Romanov Dynasty (1613) – may facilitate an understanding of the play. Key events are as follows: 1584 – Ivan IV "The Terrible", the first Grand Prince of Muscovy to use the title Tsar (Caesar), dies. Ivan's successor is his retiring and politically feeble son Fyodor, now Fyodor I, who cares mostly for spiritual matters, and leaves the affairs of state to his capable brother-in-law, boyar Boris Godunov, now de facto regent. 1591 – Ivan's other son Dmitriy dies under mysterious circumstances in Uglich. An investigation, ordered by Godunov and carried out by Prince Vasiliy Shuyskiy, determines that the Tsarevich, while playing with a knife, had an epileptic seizure, fell, and died from a self-inflicted wound to the throat. Dmitriy's mother, Maria Nagaya, exiled with him to Uglich by Godunov, claims he was assassinated. Rumors linking Boris to the crime are circulated by his enemies. 1598 – Tsar Fyodor I dies. He is virtually the last representative of the Ryurik Dynasty that has ruled Russia for seven centuries. Patriarch Job of Moscow nominates Boris to succeed Fyodor I as Tsar, despite the rumors that Boris ordered the murder of Dmitriy. Boris agrees to ascend the throne only if elected by the Zemskiy Sobor. This the assembly does unanimously, and Boris is crowned the same year. 1604 – A pretender to the throne appears, claiming to be Tsarevich Dmitriy, but believed to be in reality one Grigoriy Otrepyev. He gains the support of the Polish aristocracy, and, obtaining a force of soldiers, he marches on Moscow. Crossing into Russia, Dmitriy's invasion force is joined by disaffected Cossacks. However, after a few victories, it loses momentum. 1605 – Boris dies of unknown causes. He is succeeded by his son Fyodor, now Fyodor II. The death of Boris gives new life to the campaign of the False Dmitriy, who enters Moscow. Boyars who flock to his side murder Fyodor II and his mother. 1606 – False Dmitriy I is murdered, and is succeeded by Vasiliy Shuyskiy, now Vasiliy IV. 1610 – Vasiliy IV is deposed, and dies two years later in a Polish prison. Another pretender claiming to be Dmitriy Ivanovich, False Dmitriy II, is murdered. 1612 – Yet a third pretender, False Dmitriy III, is