Question : using the bash sort command, now do I sort dates ?

The data is:

 02/05/09 000218L3
 02/02/09 000304L3
 01/19/09 000294L3
 01/28/09 000379L3
 02/02/09 000036L3
 01/23/09 000207L3
 01/19/09 N00311L3
 02/23/09 000405L3
 12/29/08 000051L3

Answer : using the bash sort command, now do I sort dates ?

sort -t/ -n -k3 -k1 -k2 file