On Meetup, how can I get a list of meetups I have attended in the past?
Those meetups are the past ones for which I have RSVPed with YES.
To do this, you'll most likely need to use the meetup.com API (I wasn't able to find a way to do it directly through the site).
Here is the documentation for using the API's activity feed feature:
And here is an example of how to get the activity feed for a user:
To do this, you'll need an API key (Meetup automatically gave me one when I entered the API site) as well as your user ID (found on the Account > General tab).
Basically, this returns a JSON response listing all of a user's activity. RSVP's will take the form "rsvp_response": "Yes", and the event name will look something like "event_name": "August 2013 Civic Hacknight II",
I'll leave how to parse this up to you, but the basics of how many events you've attended and what they were called will all be in this API response. Here's a good overview if you are unfamiliar with working with JSON:
Or, you could always search for "rsvp_response": "Yes" in the JSON document and simply copy and paste.
You should have automatic emails generated every time you RSVP to a meetup. If you are using gmail simply search from: meetup, subject: you're confirmed and you will get a list of meetups you have RSVPed for. If gmail has archived your old mail then do the search in:anywhere
Hope this is a simple solution