Story slams growing in popularity ← Related Article Visit The Boston Globe Share on Twitter Share on Facebook Comment on this Scroll to top of page Essdras M Suarez/ Globe Staff Storytelling events are growing in popularity across the country. Essdras M Suarez/ Globe Staff The competitive storytelling slam has arisen and spread in the past 15 years or so. Essdras M Suarez/ Globe Staff Ryan LaPerle of Cambridge told his story during a Story Slam hosted by a group called Massmouth. Essdras M Suarez/ Globe Staff Massmouth hosts four or five slams a month throughout Boston, culminating in a final competition that routinely draws more than 400 people. Yoon S. Byun/ Globe Staff New York-based The Moth hosts events around the country, such as this one in Cambridge in December. Yoon S. Byun/ Globe Staff The Moth started in 1997 and now has a public radio show “The Moth Radio Hour” airing on 200 stations nationwide. Yoon S. Byun/ Globe Staff The Moth hosts slams in 11 cities at 14 venues. In 2007, it put on 62 shows; this year the total hit 221.