What role did historical figures play in the introduction and spread of religious beliefs?

If you are talking about America; the major role of religious beliefs the historical figures coming over from Europe, they were mostly Christian and over the many areas Europeans had invaded and spread their influence, most made these people convert, including the native americans. They had a strong spread because they usually displayed acts of violence if you didn't do what they wanted and so they were a major introduction into Christianity for many people.

the progressive era is a period of widespread social activism and political reform across the united states that spanned from the 1890s to the 1920s.[1] the main objectives of the progressive movement were eliminating problems caused by industrialization, urbanization, immigration, and political corruption.

the movement primarily targeted political machines and their bosses. by taking down these corrupt representatives in office, a further means of direct democracy would be established. they also sought regulation of monopolies (trust busting) and corporations through antitrust laws, which were seen as a way to promote equal competition for the advantage of legitimate competitors.

many progressives supported prohibition of alcoholic beverages, ostensibly to destroy the political power of local bosses based in saloons, but others out of a religious motivation. at the same time, women's suffrage was promoted to bring a "purer" female vote into the arena.a third theme was building an efficiency movement in every sector that could identify old ways that needed modernizing, and bring to bear scientific, medical and engineering solutions; a key part of the efficiency movement was scientific management, or "taylorism".

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a stronger central government  

its what they are