While the focus has been on Western Europe so far, there has also been a lot going on in Eastern Europe, which we'll be looking at today. The Commonwealth of Poland-Lithuania, The Ottoman Empire, and Russia were all competing at the eastern end of the continent/landmass of Europe at during the 16th century. You'll learn about the various Ivans in Russia, and the Time of Trouble that followed them, and you'll learn about the Ottomans' expansion into Europe. You'll also learn how the great power you may not have heard of, Poland-Lithuania was right in the middle of all these events, from the rise of the False Dmitry to the Battle of Vienna.