Well its not paper clips but thats close he was a pastor who was a non conformist Cavalist who met Ben Frankin and in 1770 would innente the erraser. "Yet, the discovery that he made on April 15, 1770 would prove to be the most useful to the common man. On this date Priestley discovered that India gum could be used to rub out lead pencil marks. Yes, he had invented the eraser and gave the material its common name - rubber." from
http://home.nycap.rr.com/useless/priestly/priestly.html
A the things we are learining hear paper clips, erassers, and maybe even the thumb tack that one is harder to find out about.
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