The most significant causes of the Russian revolution was that it involved a collapse of an Empire under Tsar Nicholas the second (II). It effected the new era in Russia and had many other effects on counties around the world. > Hope this helps <
♡Nico♡
Sociology. the fundamental character or spirit of a culture; the underlying sentiment that informs the beliefs, customs, or practices of a group or society; dominant assumptions of a people or period: In the Greek ethos the individual was highly valued.
The industrial Revolution created a demand among American and European business men, and consequently politicians, for new markets.
I would say that the South American continent and also the North American continent in Mesoamerica were the two sites where European colonialism mainly of the Spanish colonialists and also the Portuguese were responsible for the stealing of the natural resources and the subjugation of the native peoples like the Incas and Aztecs. While the initial conquests were brutal and barbaric, the good thing that the Spaniards did was inter-marry with the local native people and form a new society of largely mestizo or mixed people.
The main reason why the feudal system probably would not have developed if the Roman Empire continued is because "A strong military would have been in place to protect people from invaders" since this is how the Romans kept peace in the past.