The reasons for the fall of the empire include military overreach, invasion by emboldened tribes of Huns and Visigoths from northern and Central Europe, inflation, corruption and political incompetence
The House of Burgesses was the first elected general assembly in the colonies, paving the way for the democratic society formed during the Revolution. After a general assembly was established in Virginia, other English colonies demanded their own elected bodies of government.
Although this is a very complex issue, one of the major reasons why the Industrial Revolution widened the gap between rich and poor nations was because only the countries with great amounts of resources could take advantage.