Sierra and Jazmins communication project By gsmstech 100 heiroglyphs 105 paper and ink 450 block press Asia Jan 1, 1539 first printing press started in Mexico Jan 1, 1906 first wireless communication of human speech Jan 1, 1919 first broadcasting radio Jan 1, 1941 first commercial television Jan 1, 1954 Adding color to t.v broadcast are set.
