Answer:
Generally cities cause people to become more liberal, have a social hierarchy, and promote the general abundance of transportation.
Explanation:
Socially, you can have tenements form, races can self and forcefully segregate, and people tend to become more liberal with exposure to other races.
Cultural is kind of related. People tend to clump into ideological groups (if you can give me the context of the question I can better answer).
Political life, like I said they tend to become more liberal. If your question is centered around the 1920's you could discuss child labor laws.

the spinning wheel to produce textiles, the water wheel used to power machinery and the steam engine were invented. These inventions aided in speeding up the production of manufactured items.
The League of Nations was an international organization established in 1920, aimed at providing collective security in the international community to maintain world peace.
Further details about the League of Nations:
The United States never joined the League of Nations, in spite of the fact that an organization such as the League of Nations was the signature idea of US President Woodrow Wilson. He had laid out 14 Points for establishing and maintaining world peace following the Great War (World War I). Point #14 was the establishment of an international peacekeeping association. The Treaty of Versailles adopted that idea, but back home in the United States, there was not support for involving America in any association that could diminish US sovereignty over its own affairs or involve the US again in wars beyond those pertinent to the United States' own national security. The lack of involvement by the world's fastest-growing superpower, the United States, hampered its effectiveness.
The League of Nations had set out clear goals for what it intended to do. The main aims of the League were disarmament across nations, preventing war through collective security of the international community, settling disputes between countries through negotiation, and improving welfare of people around the globe. But it proved unable to meet those goals. The United Nations today has similar goals, and has been more effective in its efforts -- though there are still plenty of people who criticize the UN's effectiveness.
After the Civil War, the sharecropping system emerged in the South primarily as a way to "<span>(2) provide a labor supply to plantation owners", which was a failure. </span>