This category is within the scope of WikiProject European history, a collaborative effort to improve the coverage of the history of Europe on Wikipedia. If you would like to participate, please visit the project page, where you can join the discussion and see a list of open tasks.European historyWikipedia:WikiProject European historyTemplate:WikiProject European historyEuropean history articles
This category is within the scope of WikiProject Germany, a collaborative effort to improve the coverage of Germany on Wikipedia. If you would like to participate, please visit the project page, where you can join the discussion and see a list of open tasks.GermanyWikipedia:WikiProject GermanyTemplate:WikiProject GermanyGermany articles
This category is within the scope of WikiProject Years, a collaborative effort to improve the coverage of Years on Wikipedia. If you would like to participate, please visit the project page, where you can join the discussion and see a list of open tasks.YearsWikipedia:WikiProject YearsTemplate:WikiProject YearsYears articles
Start a discussion about improving the Category:20th century in North Rhine-Westphalia page
Talk pages are where people discuss how to make content on Wikipedia the best that it can be. You can use this page to start a discussion with others about how to improve the "Category:20th century in North Rhine-Westphalia" page.
