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Package install history - logs etc ?




I'm trying to review the history of installing packages on this system.
All my installs are done Synaptic or apt-get.
I want to review the time order of installs to jog my memory on an unrelated issue.

I have found Synaptic's File->History menu entry and the
/var/log/apt/history.log.NNN.gz files.
Is there anywhere else I should look?
TIA