Page 22 & 23 of the May 2019 Issue of Popular Mechanics magazine.
“For the century following the Civil War, Philadelphia was known as the workplace of the world, not only for the scale of its industrial infrastructure but for the unmatched diversity of its manufacturing factories and neighborhood smokestack plants. Today a similar range of production is the engine of Philadelphia’s modern maker movement, a hyper-local community of doers and entrepreneurs turning out everything from textiles to technology.”