You can create calendar events by adding due dates to items in Course Content, or on the Calendar Tool page accessed from the course Navigation bar
Adding Due Dates to Course Content Items
When creating or editing a module or items within a module, you can set due dates that will display the due date and time to students in Course Content, but also on the calendar. Students can still submit items after the due date, but these submissions will be flagged as late submissions. The due date will automatically be added to the course calendar.
To set a due date on a content item inside a module, click on the action menu (down arrow) icon after the item title and choose "Edit Properties in Place." Then click on "Add dates and restrictions..." > "Add due date" to customize the due date. Click the Update button to save your changes.
Adding Calendar Events from the Calendar Tool Page
You can create an event, such as an in-person meeting for a hybrid course, that is not part of a module. To access the Calendar tool, select the "Calendar" option from the course navigation bar. Alternatively, from the course homepage, click the drop-down menu icon to the right of the calendar widget and choose "Go to Calendar" from the dropdown.
To create an event, click "Create Event," enter the "Event Title," and scroll down to set the date. When finished, click "Create".
The other options here include linking to an item in Course Content, Adding a description, Restricting access to only certain groups or sections, Creating a recurring event, and Adding a specific Location. These are all optional.