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John Warnock, who helped invent the PDF and co-founded Adobe Systems, dies at age 82
Associated Press via AOL· 10 months agoJohn Warnock, who helped invent the PDF and co-founded Adobe Systems, has died. The Silicon Valley...
Did Fugitive Black Slaves Use Secret Codes in Quilts on the Underground Railroad?
Snopes via Yahoo News· 8 months agoGetty Images In 1999, a book came out titled "Hidden in Plain View: A Secret Story of Quilts and the...