would appreciate links to research: culture change to the US in the 20th Century, and major reform periods in the US in the 20th Century. Thank you very much.

To me, the great culture changes in the US were

The First Great Awakening
http://www.wfu.edu/~matthetl/perspectives/four.html

The Second Great Awakening
http://en.wikipedia.org/wiki/Second_Great_Awakening

The Abolitionist Movement
(Broken Link Removed)

The Rise of the Granger and Gompers Labor.
http://www.infoplease.com/timelines/laborunions.html
http://en.wikipedia.org/wiki/The_National_Grange_of_the_Order_of_Patrons_of_Husbandry

The Great War and Peace

http://en.wikipedia.org/wiki/The_National_Grange_of_the_Order_of_Patrons_of_Husbandry

The Happy times, and Female freedom
http://en.wikipedia.org/wiki/Roaring_Twenties

The Great Depression
http://en.wikipedia.org/wiki/Great_Depression

The second war and women in work
http://frank.mtsu.edu/~kmiddlet/history/women/wh-wwii.html

The Sexual Revolution and Birth Control
http://www.religiousconsultation.org/News_Tracker/birth_control_pills_helped_empower_women_changed_world.htm

The information age: the internet and information flow
http://en.wikipedia.org/wiki/Cyberculture

Thank you very much. I have a question, forgive my ignorance. When the question refers to 20th Century, exactly what time frame should be covered like from what year to what year? Thank you very much.

1901 to 2000, but the others before that really had a bearing on the changes. I frankly don't know how one can separate them.

Thank you and good point!

Sure! While I cannot provide direct links as I am a text-based AI, I can still guide you on how to find the desired information.

To research culture change in the US during the 20th Century, you can start by exploring online databases, academic journals, and books that discuss this topic. Here's a step-by-step guide on how to conduct efficient research:

1. Online Academic Databases: Start by using reputable academic databases such as JSTOR, ProQuest, or Google Scholar. These platforms host a large collection of scholarly articles related to various subjects. Use keywords such as "culture change in the US in the 20th Century" to search for relevant research papers.

2. Research Journals: Look for specific journals that focus on cultural studies, American history, or sociology. Journals like "American Quarterly," "Journal of American History," or "Cultural Sociology" may provide insightful articles on this topic. Visit their websites or use online journal databases to search for relevant articles.

3. Books and eBooks: Check library catalogs, including online platforms like WorldCat, to find books that cover the cultural changes in the US during the 20th Century. Some recommended books to begin with could be "The Age of Great Dreams: America in the 1960s" by David Farber, "American Babylon: Race and the Struggle for Postwar Oakland" by Robert O. Self, or "The Feminine Mystique" by Betty Friedan (focused on women's culture in the 20th Century).

Regarding major reform periods in the US during the 20th Century, you should follow a similar research process. However, instead of searching for culture change, focus on topics like social, political, or economic reforms. Here are the steps:

1. Historical Analysis: Begin by identifying specific periods of reform in the US during the 20th Century. Examples include the Progressive Era (1890s-1920s), New Deal Era (1930s), Civil Rights Movement (1950s-1960s), and Great Society Era (1960s-1970s). Pinpointing these periods will help you refine your research.

2. Online Research: Use search engines like Google or Bing to find reputable websites that discuss major reform periods in the US. Start with sources like government archives, educational websites, or trustworthy news outlets that provide historical analyses.

3. Academic Sources: Utilize academic databases and search for research articles, essays, or book chapters that focus on specific reform movements in the US. Look for works written by historians or political scientists who specialize in American history or social movements.

Remember to critically evaluate the sources you come across to ensure that they are reliable and authoritative. Additionally, most of the academic databases and journals may require a subscription or access through a university library.