You have access to Events created by other members of your Social Tables team. Even when a user is removed from the Team, you'll still have access to all of the Events they created. Find these Events by adjusting the Owner filter in the upper-left of the Events tab.
To view Events created by other Social Tables users:
All of your current Social Tables team members will appear in the dropdown. To view Events created by users who are no longer on your team, select All Owners.