Answer:
Peter the Great, who governed Russia from 1682 to 1725, was responsible for the impressive expansion of the Russian Empire. He implemented a range of reforms to modernize Russian society and economy, including military, administrative, economic and cultural reforms. His military reforms saw the modernization of the Russian army and navy, with new weapons, training methods, and organizational structures. Administrative reforms included the reorganization of the Russian government and the introduction of new administrative positions. Economic reforms saw the promotion of trade and manufacturing and the establishment of new industries. Cultural reforms included the introduction of Western culture and the adoption of European customs and fashions, as well as the founding of institutions such as the Russian Academy of Sciences. In conclusion, Peter the Great's reforms were instrumental in stabilizing and modernizing Russia, making it a major force in Europe and leading to the growth of the Russian Empire.