The "Big Three" countries were the United States, Great Britain and Russia. They were called this because they were by far the most important allied players during the war, with Russia and Britain taking on most of the casualties.
Martin Luther wrote the 95 Thesis and posted it on the church's door. <span />
Kublai Khan is known and revered for his civilian and
administrative, not his military achievements. Grandson of Genghis Khan,
Kublai sought to govern rather than to exploit and devastate the vast
domains bequeathed to him by two generations of Mongol conquests. He
made the transition from a nomadic conqueror from the steppes to
effective ruler of a sedentary society. Ironically, however, his reign
witnessed the Mongols’ most remarkable military success, the subjugation
of the Southern Sung dynasty of China, and simultaneously their
greatest military fiascos, the failed naval expeditions against Japan
and Java.
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If this is asking about WW1, the war debt was blamed on germany which is what sparked WW2.