In my bibliography (Chicago Style), references from the same author order not by year but randomly (as it seems). I am using the following specifications:

\usepackage[backend=biber,style=chicago-authordate, uniquename=false]{biblatex}

Is there a logic that Chicago uses for ordering? Can I Change it to chronological?

  • 1
    Can you provide a short minimal example that reproduces the seemingly random order (see I've just been asked to write a minimal example, what is that?, How to write a MWEB (Minimal working example with Bibliography)?).
    – moewe
    May 3, 2016 at 7:08
  • Please note that to use biblatex-chicago you should call it via the wrapper package and not biblatex directly. Unless you know exactly what you are doing, \usepackage[authordate]{biblatex-chicago} is the better choice.
    – moewe
    May 3, 2016 at 7:09
  • Perfect, that solved the ordering. Thanks. However, now I get the following error message (ShareLatex): Package biblatex Warning: No "backend" specified, using Biber backend. To use BibTeX, load biblatex with the "backend=bibtex" option. And quite a few others telling me about "empty ibidem citations". Can you translate? ;)
    – user100298
    May 3, 2016 at 7:19
  • The backend warning can be solved as below. The "empty ibidem citations" warrant a new question with an example that reproduces them.
    – moewe
    May 3, 2016 at 7:22

1 Answer 1


biblatex-chicago should be called via its wrapper package, because that makes sure to pass all the right options (amongst them sorting=cms) to biblatex.

So you would use

\usepackage[authordate, backend=biber]{biblatex-chicago}

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