A special event on April 4^th marked the 15^th anniversary of the Joint School of Nanoscience and Nanoengineering.  It has been quite a ride, and its faculty have published more than 500 peer-reviewed journal articles, received over $30 million in external grants and contracts, and been issued over 20 patents since its founding in 2009.  Equally important, more than 200 students have earned their M.S. or Ph.D. degrees from the JSNN, three spin-off companies have been created based on research developed at the school, and the University Economic Development Association (UEDA) recognized JSNN with an Excellence in Innovation Award in 2022.