Dance historian Graham Christian discussed his new book, "The Playford Assembly," a major new collection of historic English dances published by the Country Dance and Song Society in celebration of its centennial year. Christian's talk will be enhanced by demonstrations of the dances by CDSS dancers and musicians. "The Playford Assembly" (a follow-up to the seminal 1990 collection "The Playford Ball," also published by CDSS) features 125 historical dances edited for use by contemporary dancers and dance leaders. Reflecting recent scholarship, it revives many of the older dances based on the advice of a committee convened by the author. He will discuss his selection process and the history of English country dance in England and the United States, as well as cultural aspects of the era in which the dances were created.