Rottner, Renee M. «How Products Are Made. Volume 2. Safety pin»(en inglés). Consultado el 20 de agosto de 2012. «The Greeks and Romans called them fibulae (Latin for brooch) and used some to fasten garments, while others were mainly omnamental.»
Rottner, Renee M. «How Products Are Made. Volume 2. Safety pin»(en inglés). Consultado el 20 de agosto de 2012. «An indebted inventor named Walter Hunt sought a way to repay a $15 debt. He designed a "safe pin" for securing clothing, which protected fingers from the sharp end. He patented the design in 1849 and sold his idea for $400.»
