1.) This is a feature to draw attention to current classes but people want to be able to see old events. We will work to show old events but keep focus on newer events.
2.) There is the feed https://calendar.dallasmakerspace.org/events/feed that you can add to your google calendar as an ical. Google instructions Subscribe to someone’s Google Calendar - Computer - Google Calendar Help Add using a link.
3.) This is a wordpress issue but like @TBJK you can access the full calendar at https://calendar.dallasmakerspace.org/