Ambrose Swasey was an American mechanical engineer, inventor, entrepreneur, manager, astronomer, and philanthropist. With Worcester R. Warner he co-founded the Warner & Swasey Company.

Euclid Avenue is a major street in Cleveland, Ohio, United States. It runs northeasterly from Public Square in Downtown Cleveland, passing Playhouse Square and Cleveland State University, to University Circle, the Cleveland Clinic, Severance Hall, Case Western Reserve University's Maltz Performing Arts Center, Case Western Reserve University and University Hospitals Case Medical Center. The street runs through the suburbs of East Cleveland, Euclid, and Wickliffe, to Willoughby as a part of U.S. Route 20 and U.S. Route 6. The HealthLine bus rapid transit line runs in designated bus lanes in the median of Euclid Avenue from Public Square to Louis Stokes Station at Windermere in East Cleveland.