Benjamin Franklin finished college on April 17th, 1790.
The term color organ refers to a tradition of mechanical -LRB- 18th century -RRB- , then electromechanical , devices built to represent sound or to accompany music in a visual medium -- by any number of means .. In the early 20th century , a silent color organ tradition -LRB- Lumia -RRB- developed .. In the 1960s and '70s , the term `` color organ '' became popularly associated with electronic devices that responded to their music inputs with light shows .. The term `` light organ '' is increasingly being used for these devices ; allowing `` color organ '' to reassume its original meaning .. light organ. light organ