Your case does not seem very difficult: create a standard page with a datagrid or listview displaying your events.
I'd suggest going through the online learnings at https://gettingstarted.mendixcloud.com/link/path to get you started!
Hello Wieke, this is not the exact solution that I am looking for.
In the image you can see my calendar widget. When i click on an event, i want a detailed page with the info about the event. How can I achieve this?
Sorry I misunderstood:
In the widget you can define an 'on click' event. If you create a detail page for your event, you can have this onClick microflow open this detail page.