Peter the Great: Peter the Great was a Russian Tsar who played a significant role in expanding Russian territories towards the Baltic Sea.
St. Petersburg: St. Petersburg is a city situated along the eastern coast of the Baltic Sea. It was founded by Tsar Peter the Great as Russia's new capital in 1703.
Northern European Plain: The Northern European Plain is a vast lowland region that stretches across various countries surrounding the Baltic Sea, including Russia. It has fertile soil and is important for agriculture.