European dominance in the nineteenth and twentieth centuries was dependent on success in colonization, economics, militarization, and, religious toleration.
The world in the century between 1815 and 1914 was largely dominated by European powers. In the nineteenth century, Western Europe was the economic powerhouse of the world. Besides, Europeans conquered or colonized more that 80 percent of the whole world from 1492 to 1914.
Moreover, at that time period, Europeans dominated world trade.