When he was seventeen years old, he suddenly pushed Sister Sophia from the throne. Peter himself became the ruler of Russia. He was not contented with being the Tsar of a semi-barbarous and half-Asiatic people. He must be the sovereign head of a civilised nation. To change Russia overnight from a Byzantine-Tartar state into a European empire was no small undertaking. It needed strong hands and a capable head. Peter possessed both. In the year 1698, the great operation of grafting Modern Europe upon Ancient Russia was performed. The patient did not die. But he never got over the shock, as the events of the last five years have shown very plainly. RUSSIA vs. SWEDEN RUSSIA AND SWEDEN FIGHT MANY WARS TO DECIDE WHO SHALL BE THE LEADING POWER OF NORTH-EASTERN EUROPE IN the year 1698, Tsar Peter set forth upon his first voyage to western Europe. He travelled by way of Berlin and went to Holland and to England. As a child he had almost been drowned sailing a homemade boat in the duck pond of his father's country home. This passion for water remained with him to the end of his life. In a practical way it showed itself in his wish to give his land-locked domains access to the open sea. While the unpopular and harsh young ruler was away from home, the friends of the old Russian ways in Moscow set to work to undo all his reforms. A sudden rebellion among his life-guards, the Streltsi regiment, forced Peter to hasten home by the fast mail. He appointed himself executioner-in-chief and the Streltsi were hanged and quartered and killed to the last man. Sister Sophia, who had been the head of the rebellion, was locked up in a cloister and the rule of Peter be-gan in earnest. This scene was repeated in the year 1716 when Peter had gone on his second western trip. That time the reactionaries followed the leadership of Peter's half-witted son, Alexis. Again the Tsar returned in great haste. Alexis was beaten to death in his prison cell and the friends of the old fashioned Byzantine ways marched thousands of dreary miles to their final destination in the Siberian lead mines. After that, no further outbreaks of popular discontent took place. Until the time of his death, Peter could reform in peace. It is not easy to give you a list of his reforms in chronological order. The Tsar worked with furious haste. He followed no system. He issued his decrees with such rapidity that it is difficult to keep count. Peter seemed to feel that everything that had ever happened before was entirely wrong. The whole of Russia therefore must be changed within the shortest possible time. When he died he left behind a well-trained army of 200,000 men and a navy of fifty ships. The old system of government had been abolished over night. The Duma, or convention of Nobles, had been dismissed and in its stead, the Tsar had surrounded himself with an advisory board of state officials, called the Senate.