How can I display a calendar that can handle a lot of events?

1. How do I get Google Calendar to show all events?
2. How many people can I invite to a Google Calendar event?

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."

How many people can I invite to a Google Calendar event?

You can invite up to 200 people to an event. If you need to invite more people, you can invite people using Google Groups. With Groups, you can invite groups that have up to 100,000 people. Learn more about inviting groups to your event.