Kodak Camera: Go to the following web site and draw a timeline showing the
History of Kodak.
Milestones  1878 - 1932
http://www.kodak.com/US/en/corp/aboutKodak/kodakHistory/milestones78to32.shtml

Radio Broadcasting: Go to the following web site, click on "1920's" and draw a timeline showing Radio Broadcasting during the 1920's.
http://www.northwinds.net/bchris/

Airplane: Go to the following web site, advance down to E. Development of
Commercial Aviation and research Airplane using your worksheet for guidance.
http://encarta.msn.com/find/concise.asp?mod=1&ti=01431000&page=5#s39