On October 31st 1996, Dan Conlin started writing down the number of kids who showed up on his West End Halifax doorstep and the kind of costumes they were wearing. And for the past 25 years, the Historian and lecturer has been sharing that information with his neighbours and anyone else who was interested. He currently is employed as a Curator at the Canadian Museum of Immigration at Pier 21 in Halifax. And in this conversation, he shares how he got started and what he's learned in the 25 years since.