Where is the email archive older than 2010-08-19?

[wang bin]

Hi All,

    I am fresh on Cassandra, and I want to know some topics have been
discussed before.
But I don't known how can I find the old topics before 2010-08-19.
The oldest thread I found is
http://www.mail-archive.com/user@cassandra.apache.org/mail15.html

   Can someone told me?

Thank you.
Bin Wang