The third book "History of Ukraine from Grandfather Svyryd" covers the period from the Krevsk Union in 1385 to the Brest Union in 1596. For Europe, it was an era of geopolitical upheavals that directly affected the Ukrainian lands, therefore the author analyzes the circumstances of the Teutonic Order defeat, the fall of Constantinople, the collapse of the Golden Horde, the consequences of the Great Geographical Discoveries, the Little Ice Age and much more.