Pottery
7,900 B.C.		 Egyptian with Carpenter Plywood
3500 B.C.		 Egyptian with Carpenter Wheel
3200-3500 B.C.		 Swimming
Pools
2500 B.C.		 Swimming Pool Eyeglasses
1200s		 Newspaper Abacus
1200 A.D.		 Abacus The Printing Press
1450s		 Newspaper The Microscope
1674		 Microscope Vaccinations
1796		 Vaccination The Clothes Dryer
1800		 Clothes Dryer The Camera
1827		 camera Sewing Machines
1790 - 1840		 Primitive sewing machine The Bicycle
early 1800's 		Hot Dogs
1860's		 hotdog The Traffic Light
1868		 Traffic Light Telephone
1876		 Recorded Sound
1877
Recorded Sound		 Lightbulb
1879		 Lightbulb The Zipper
1890		 Lightbulb Typewriter
1898
typewriter		 Radio
Transmission
1901
Radio		 Vacuum Cleaner
1901
Vacuum Cleaner		 Powered Flight
1903		 Bi-Plane Assembly Lines
1908		 The first Model T assembly line The
Refrigerator
1911 		Insulin
1921		 Insulin The Electric Guitar
1923		 Electric Guitar The Television
1927		 Television Sliced Bread
1928		 Sliced Bread Penicillin
1929		 Mold

Velcro
1940's

Computers
Eniac
1945		 Eniac Computer The Frisbee
1948		 Frisbee The Snowmobile
1959		 Snowmobile The Computer Mouse
1964		 Mouse The Internet
1973		 Computer Compact Discs
1980		 CD Post it
Notes
1980 		The
Space Shuttle
1981		 Space Shuttle The V-Chip
1995
Computer Chip 		DVD (Digital Versatile Disc
or Digital Video Disc)
1995		 DVD Question?