The Calendar button is the Events Button, located in the top left corner of your main page.
Tapping it shows the Story Events, which can be played multiple times and let you complete three special tasks while discovering mysteries about the Boulton family.
The Story Events occur in this order:
Ignatius Boulton Event
Lindsay's New York Story Event
Casey & Skatie Event
These events unlock one by one, so if you haven't played a Story Event before, you'll likely see only the Ignatius Boulton Event.
Enjoy unveiling those mysteries! 📅🔍