How Has Mongol'smade important contributions to Eurasia and How has Mongol's caused more destruction and death

Answer 1

so in russian Asia is 50% of people with genes from mongols(40% of them are muslims)....so only russian land stop occupation in the gate to west europe...they stop in the middle of Poland ,but was gone away....a lot of mongoliand deathes....so but they were occupate Russia for 200 years,we must pay for them 10% of family salary in gold...if you not pay they took your wife,after children,after you,for slave......they kill and rob everymonth russian slavic villages...with cities...so after this people from south RUS(now its Ukrania) and east RUS to north-west and they built Moscow city....so soon slavics was kicked mongolian-tartarian occupants and saved Byzantic Empire...but arabians soon occupate them......