The world’s first flash mob was organized in Manhattan in May 2003 by a man named Bill Wasik. It was a flop because the retail store was tipped off. Wasik organized the second attempt on June 3, 2003.

Improv Everywhere is a New York-based comedy troupe known for its unexpected flash mobs. For its latest mission, the group created the “most socially distanced office” … in the middle of the East ...