Reading articles re US territories, two terms are given significant (e.g are in the heading chapter AND sidebar header of relevant Wikipedia article) reference: Incorporated/Unincorporated and Organized/Unorganized.
I'm trying to understand the significance of Organized/Unorganized. So this term relates to self-governance given by Congress. Of all current territories, only five are (significantly enough) permanently inhabited. Meaning, the concept of organized has really no meaning for the other territories. Of the five inhabited territories, only American Samoa is unorganized. Trying to identify the significant governance difference between this unorganized territory and the others is not a simple task. All territories are self-governed and it seems each territory has its unique relationship with the US federal government including US citizenship/nationality (which does not run parallel to the organized denominator).
So my thought is that perhaps the Organized/Unorganized term is mostly historical, with more significance to territories before becoming organized-incorporated?
Main Wikipedia article: Territories of the United States