Pasadena History question: Japanese sister cities?

Question

I would like to know the years when Pasadena, California USA became a sister city to Mishima, Shizuoka and Kasukabe, Saitama, as well as what year the summer exchange program with Kasukabe, Saitama began.

Answer 1

why not contact pasadena city workers?

http://www.ci.pasadena.ca.us/

according to wikipedia, currently the only sister cities of pasadena are:

Järvenpää, Finland

Ludwigshafen am Rhein, Germany

Mishima, Japan

Vanadzor, Armenia

Xicheng District, Beijing, China

Tangier, Morocco