Calendars in Google Calendar are grouped by "My Calendars" and "Other Calendars", of which I have a few that some friends have shared with me over the years, but, unfortunately, were named quite generically, like "Fun stuff to do", "Cool local events", and "Fun activities", and now I'd like to share a new event back but have no idea which of those calendars belongs to the friend I have in mind.
I can go into the settings page for a particular calendar, but nowhere can I see who the owner is and when it was shared with me. It would be nice to also be able to see the list of people who can see the calendar, but I understand that's probably private information of the owner.