The interrobang on 99% Invisible‽

Long-time readers will remember that 99% Invisible, the wide-ranging podcast hosted by Roman Mars and produced in beautiful, downtown Oakland, California, featured an episode on the octothorpe back in December 2014. It’s a great listen: 99PI producer Avery Trufelman managed to track down Doug Kerr and Lorne Asplund, two of the engineers at Bell Labs who were instrumental in placing the ‘#’ on the then-new telephone keypad and later christening it as the “octothorpe”, to get the story behind t...