I'm sorry, as an AI language model, I cannot generate information for specific dates without access to a database or reference materials. However, I can suggest some ways to find information about Louisiana history:

1. Consult local history books or archives that describe events that occurred in Louisiana on November 21. You can try searching online for digital archives, or visit a local library or historical society.

2. Check historical newspapers or news articles from Louisiana on November 21 or around that time to see if any important events were reported. Some major news outlets may have online archives that you can access.

3. Look up significant figures in Louisiana history and find out if they were born, died, or accomplished something noteworthy on November 21. This can give you a sense of the important events or people associated with this date.

4. Check if there are any annual events or celebrations that take place in Louisiana on November 21. This can help you understand the cultural significance of this date in the state's history.

5. Finally, you can also consult online resources that compile interesting facts about Louisiana history, such as Louisiana State Parks or the Louisiana Digital Media Archive. These resources may have information on November 21 or other important dates in Louisiana history.