Action=History: Sunday Hackathon

On the last Sunday of every month, the Boardroom at Ace Hotel New York hosts Action Equals History — a unique opportunity for New Yorkers to learn hands-on in a technology training/workshop session about the mechanics, practices and benefits of Wikipedia and the Wikimedia projects. This is an opportunity for all to gather, share and work collectively towards a more robust account of history.

https://en.wikipedia.org/wiki/Wikipedia:Meetup/NYC/2017-07_Action=History