Simple MySql question

I have a table named ‘guestlist’ with 3 columns:

First
Last
Date

I want to run a query which gives me all the DIFFERENT dates in the date column.

For example if my dates column contains:

6/28/06
6/28/06
6/28/06
6/29/06
6/29/06
6/30/06

I want it to only return 3 records:

6/28/06
6/29/06
6/30/06

How do i do it?

Thanks