Corpus of Supreme Court Opinions of the United States (COSCO-US)

Current Status:
Publicly available opinions through the 2021 Terms including deserting opinions from denials of cert.  Because the US Reports were the original source of text, the corpus includes opinions from 1750 in selected colonies/States.

Develop content to include all available opinions include formal dissents to denial of cert, briefs, and oral arguments.  Derive sufficient descriptive metadata to allow search filtering and useful facets result sets.

The first feasibility test was conducted in 2014.  An early issues identified was that available on line texts were missing various opinions.


Source Documents Words
Opinions of the United States Supreme Court 61,809 98,379,977


(Last updated 13/7/2022)


Supreme Court

Wayne Schneider

Former Chief Architect Electronic Resources

David Armond

Assistant Dean for IT