History of mass media By tpiller37 Oct 21, 1440 Invention of the printing press Apr 21, 1836 First adversisment published Apr 21, 1895 First radio inroduced Apr 21, 1927 Invention of the televison Apr 21, 1943 first computers Apr 21, 1969 invention of the internet Apr 21, 1997 Six degress was the first social media website