Over here need to ask whether there is any workaround to get all facebook events even if it is of a particular city.
I have also tried by getting venus and then getting events happening over there, but it is strictly inefficient.
API to get events using lat lng search?q=*&type=event¢er=37.76,-122.427&distance=1000
But in the response to the above query I found they are for sure not events in any way.
Also there is FQL https://developers.facebook.com/docs/technical-guides/fql/ This FQL functionality which is now not supported by Facebook, did it used to work earlier and get all the events from facebook.