With events you are able to organize meetings with others or book a time-slot in your calendar. They can be related to a different object and as a consequence be shown in an object's open activities.
There are two options how to create a new event. The first option is via the Home tab: scroll down to Calendar and click New Event (1). The second option is available from most tabs: use the Create New drop-down menu and select Event (2). The third possibility is to add an event to a object, i.e. a contact, account, etc. As a result, the event is then automatically related to the particular object.
Fill in the fields to create your event. If you enter information on to which object the event is related to (1), it will then be displayed under the object's open activities.
If you add a name and click Add to Invitees (2), the event will be turned into a multi-person event.
To finish and expand the event record, follow these instructions: