We'll create fresh WordPress site with Pronamic Events installed. You have 20 minutes to test the plugin after that site we'll be deleted.
This plugin uses custom post types to add some Events functionality. Pronamic Events allows you to add, edit and remove events.
With Gravity Forms and the Gravity Forms + Custom Post Types
you can create an form to create event posts. In most cases you also want to automatic fill in the event start date, end date
and location. You can set this up by checking one of the options on the date/time fields.
For the other fields you can add Custom Fields from the Post Fields
section and give them the correct custom field names: