History of Transportation \ݔ?sh)İl(f)չʷ Prehistoric Times ʷǰr Ancient Greece and Rome ϣD_R The Middle Ages orڣ The Age of Overseas Expansion Urڣ Development of Inland Transport (ni)\ݔ?sh)İl(f)չ The Mississippi River Ⱥӣ Road · Turnpike M· The Steam Age r Steam Engine C History of Railroad F·l(f)չʷ Developments In The United States F·İl(f)չ The First Transcontinental Rail Lines һlM؞ꑵF· Sleeping Car P܇ U.S. Steel: Carnegie & Morgan FĦc(ni) The 1920s and The Great Depression 1920 Լ(jng)ʒl Amtrak F·\˾ The Beginnings of Modern Transportation F(xin)ͨԴ Airplane wC First Human Flights ĵһwУ The Wright Brothers Rֵܣ
Principles of Flight wеԭ Creating Lift (chung) Drag and Thrust ҷcM Airship w The Hindenburg dDZ̖¼ Automobile ܇
8
COMMUNICATION
The Development of Communications Systems İl(f)չ Writing ֵĚvʷ Pictograms D֣ Cuneiform Ш֣ Syllabic Writing System (ji)ϵy(tng)ijF(xin) Hieroglyphics (Holy + Carving) ֣ Rosetta Stone _֮i_ʯ Ideography ֣ Logography ~֣ Bone and Shell Script ģ Rebus i Alphabet ĸ Manuscript 壩 Papyrus ɯݼ Wax Tablets Ϟ壩 Parchment Ƥ Book of Hours ÿնYٝ Paper Manuscripts ָ壩 Tsai Lun ̂켈