00842cam a2200253 4500 599007550 TxAuBib 20110823120000.0 110110s2012||||||||||||||||||||||||eng|u 9781404866621 1404866620 MnManCP MnManCP TxSlISD TxAuBib Spengler, Kremena T. An illustrated timeline of inventions and inventors / by Kremena T. Spengler. Mankato, MN : Picture Window Books, 2012. 24 p. : col. ill. ; cm. Takes a look at important moments in history using timelines. 2-4. 3-4. 20110823. Inventions. Inventors. Technological innovations.