Adding a calendar to your team page is relatively straightforward. You click on the New Calendar button, enter a name for your calendar at the prompt, click on Save, and there you go.

Click on the plus sign (+) next to a calendar date to add an event. 

Be sure to put an event name or description in item 1 "Event Name".  There is a reason that it says "Required".

Pay attention to the item 2 "Department / Sub Department Filter", and be sure to select the button for "NO, do not include in General Site Calendar Listing."

In the date field in item 3, it defaults to the date whose plus sign you clicked, but you can change it to any date, including in a future month.

Item 4 "Event Date TEXT" would normally be left blank.

Item 5 is optional, but would be where you put the time, location, and any further details associated with the event.

Note that if you delete the calendar from your team page, any events that you have placed on it will remain in the system.