Final answer:
Between 1700-1825, various political changes occurred due to the Enlightenment, revolutionary movements, and growing sectional tensions bound to slavery and religious divisions. Britain's reforms and America's evolving party system reflect the era’s shift towards increasingly democratic and innovative politics.
Step-by-step explanation:
The period between 1700-1825 was marked by significant political change influenced by different movements and ideologies. The enlightenment ideals sparked new political thoughts, while revolutions, such as the Haitian Revolution led by Toussaint Louverture, dramatically transformed political landscapes. Sectionalism and the emergence of new political parties, such as the Democrats and the Whigs in the United States, helped shape the nation's political discourse around burning issues like slavery and state rights. Simultaneously, Britain experienced gradual reforms, like the Great Reform Bill of 1832, which expanded the electorate and made strides towards ending slavery and more liberal governmental policies. Not to be outdone, the broader influence of the Enlightenment also facilitated the centralization of political power and the precursors to a market economy during the absolutist era.
The key transformative events of this era include the Second Great Awakening in America, sparking religious and political division; Denmark Vesey's 1822 rebellion highlighting slave discontent; Britain's slow, steady liberalization post-Great Reform Bill, ultimately repealing the Corn Laws; and the increasing democratic trend in politics that, while attacking old inequalities, often upheld white supremacist attitudes. These developments collectively brought more change to political structures than any single factor during that time.