It's possible you're thinking of:
* "El Mississippi": This could be a regional newspaper in a Spanish-speaking region related to the Mississippi River, but without more information, it's impossible to determine its importance.
* A specific newspaper with a similar name: There might be a local or regional newspaper with a similar name that you're thinking of.
To help me understand what you're looking for, please provide:
* The full name of the newspaper: If you remember it accurately, please provide the complete name.
* The location or region: Was the newspaper published in a specific country, state, or city?
* The time period: When was the newspaper published?
With more information, I can help you understand the significance of this newspaper.