When marketing your event- consider the 5W's
Who- who is invited
Can also begin identifying your networks for marketing. Your networks are the best marketing tool you have.
What – what is happening at the event- especially speakers, or special things
Where -
When – (a schedule, especially if the event is a day or more)
Why is it important-
Bonus question:
Is registration required? How will people register? When will they register? (When will it open, when will it close)