Jan. 1 to Dec. 26 -- NOTHINGDec. 27 -- printing press (1450 A.D.)
Dec. 28 -- news books (1610)
Dec. 31, 9 a.m. -- radio & film (1890s)
Dec. 31, 3 p.m. -- TV (1930s)
Dec. 31, 10:50 p.m. -- CDs VCRs (1980s)
Dec. 31, 11:35 p.m. -- Internet, WWW
Dec. 31, 11:58 p.m. -- digital cameras, cell phones, iPods, DVDs, blackberries, iPhones, Twitter, etc.