This activity was spread worldwide in part by BKS Iyengar, who also ran a school for it in Pune ("Pu-Nay").  
An early text on this practice was written under a pseudonym by a Chicago man named William Walker Atkinson whose other works included Thought Force in Business.  Michelle Goldberg's recent book on how this activity became popular centers on the story of a Latvian woman born Eugenia Peterson who taught this activity to Gloria Swanson and Greta Garbo.  A company founded to sell accessories for this activity operated a Bethesda, Maryland store where Jayna Murray was murdered in 2011.  Sheree Waterson resigned from that same company in 2013 after accessories for engaging in this activity were recalled for being too (*) thin and liable to tear.  This activity was spread worldwide in part by BKS Iyengar, who also ran a school for it in Pune ("Pu-Nay").  Pants for use in this activity are made by lululemon.  For 10 points, name this practice wherein you might perform downward-facing dog.
An early text on this practice was written under a pseudonym by a Chicago man named William Walker Atkinson whose other works included Thought Force in Business.  
yoga