Compendex 1884-presentContents/Info: Compendex® is the most comprehensive interdisciplinary engineering database in the world. Compendex contains over 8 million records and references over 5,000 international engineering sources including journal, conference, and trade publications. Coverage is from 1969 to present and the database is updated weekly. Combined with the Engineering Index Backfile, the database includes over 9.7 million records and spans back to 1884.