Default date column not aligning in xcel - response (1) by uco

the data is not apperaring in the post as I intended,
 
          10/31/2009
           8/2/2005
            9/18/2009
           12/26/2007
            12/13/2006
             3/15/2012
             4/21/2009
             11/9/2011
11/17/1858
 
The low date 11/17/1858 is not aligning properly along with other dates