How to show multiple calendar events simultaneously?

1. How does Google Calendar display multiple calendars at once?
2. How do I get Google Calendar to show all events?

How does Google Calendar display multiple calendars at once?

To view several co-workers calendars at once, check the boxes next to their names, or go to Meet with... and enter their names. At the top right in the view switcher box, click Day. The calendars appear next to each other so you can easily see when everyone is free at the same time.

How do I get Google Calendar to show all events?

In Google Calendar settings, go to “Events from Gmail,” and check the box next to "Show events automatically created by Gmail in my calendar."