You've heard the saying "judge a man by his actions, not his words." Well, the same goes for historical movements.

The Progressive Era refers to the big political trends and ideologies of the late-18th and early-19th centuries, and the group of old white dudes with mustaches that we collectively refer to as the Progressive Presidents that put these actual policies in place. That's Teddy Roosevelt, William Howard Taft, and Woodrow Wilson, for you nosy types. 

We know policies sound more boring than a box of rocks, but they're slightly more important than rocks. They did stuff like create the American income tax system as we know it and give government a role in child welfare. 

See, it seemed a triumphant moment when the United States catapulted to the top of the world's industrial producers by the end of the 19th century. The bitter legacy of the Civil War seemed to have subsided—for whites, at least—as the country got down to the business of technological advancement, manufacturing efficiency, transportation revolution, and wealth creation.

But many Americans fell behind as the nation raced toward the future. The poor seemed to be growing in number and forming a distinct urban underclass, crammed into slums and with little hope of advancement. At the same time, industrial titans amassed great fortunes unprecedented in American history, and the gulf between "haves" and "have nots" had never seemed as wide.

Predictable resentments on the part of the poor against the rich exploded into raw class antagonism with the revelation of acts of corruption and shady dealings on the part of some businessmen. Strikes often ended in violence, and the specter of all-out class warfare loomed ominously over the country. Even as the United States surged toward a new century of industrial strength and dynamism, it seemed that the nation faced a grave danger of coming apart at the seams. 

This was the world that the Progressives sought to reform. With a vested faith in their Christian principles and in the benefits of modernity, expertise, and technological advancement, the Progressives campaigned for a series of reforms they believed would stave off social revolution by allowing social progress for most citizens.

But this is where we get to one of the most important debates of Progressive history, because all these new laws and policies and commissions and bureaus added up to a massive increase in the size of government. And unless you've been living under a rock with no internet connection, you know we're still arguing about the size of government to this very day. 

But compared to the Progressive Era, we're really arguing about big government versus bigger government. By looking at the effects of Progressive Era policies in the past, maybe you can start to make up your own mind about how big government should be. 

Like creamy vs. crunchy peanut butter, it's one of those things everyone has to have an opinion about.

The history of the Progressive Era touches on central themes in American history: the power of the state, the size and influence of corporations, economic regulation and free market capitalism, working conditions and the quality of life for industrial workers, and the distribution of wealth. 

The political corruption and corporate power that characterized the post-Civil War period reached such a level by 1900 that many citizens felt that core American values were threatened.

The cherished tenets of the modern world's first republic—individualism, equal opportunity, meritocracy, and republican government itself—seemed under attack. Urban political machines used bribery and patronage to maintain an anti-democratic chokehold on power in municipalities across the country. Some industrial tycoons learned they could amass unprecedented profits not only through innovation and entrepreneurship, but also through monopolization and exploitation of workers.

In short, both democracy and free-market capitalism seemed, to many, to be imperiled by an epidemic of corruption, in which powerful special interests exploited their positions of influence in government and business to enrich themselves at the expense of the majority of the American people.

The Progressive Era was the first period in American history when more workers labored in factories than on farms. The country had never before led the world in manufacturing and there had been no such thing as a billion-dollar business before U.S. Steel was capitalized in 1901.

The country was wholly unprepared for the rapidity or the ramifications of its own economic and industrial growth. Average citizens quickly reacted against what many saw as the unjust influence of the wealthy and powerful on their lives, and they demanded government intervention on their behalf.

But by 1900, Americans had already seen prior reform movements—from the National Labor Union to the Populist Party—fail for lack of organization and support, or because they were co-opted by mainstream politicians. 

Progressives were determined to do something to right the wrongs that plagued their society, and they achieved more success than any of their reformist predecessors. Yet their movement was an extremely complicated endeavor involving a diverse cross-section of people, and Progressivism ultimately—and predictably—left a mixed record of success and failure in its wake. This varied legacy should provide a telling history lesson for all future proponents of reform and progress.