-
Period: 250,000 BCE to 10,000 BCE
PALEOLITHIC
-
200,000 BCE
DISCOVERY OF FIRE
-
Period: 10,000 BCE to 3500 BCE
NEOLITHIC
-
4000 BCE
APPEARANCE OF WRITING
-
3500 BCE
COPPER
-
3500 BCE
WHEEL
-
Period: 3500 BCE to 700 BCE
METALS AGE
-
1500 BCE
BRONZE
-
700 BCE
IRON
-
700 BCE
CUNEIFORM WRITING
-
Period: 700 BCE to 476
OLD AGE
-
100 BCE
PULLEY
-
105
PAPER
-
Period: 711 to 1492
MIDDLES AGES
-
1440
PRINT
-
1450
PRINTING PRESS
-
Period: 1492 to
MODERN AGE
-
COMPOUND MICROSCOPE
-
TELESCOPE
-
LIGHTNING ROD
-
STEAM MACHINE
-
ELECTRIC BATTERY
-
Period: to
CONTEMPORARY AGE
-
PHONE
-
LIGHT BULB
-
AUTOMOBILE
-
RADIO
-
PLANE
-
PENICILIN
-
COMPUTER
-
Period: to
REAL WORLD
-
MOST ADVANCED MEANS OF TRANSPORTATION
-
VIRTUAL REALITY
-
TOUCH SCREEN
-
BLUETOOTH
