|
|
c. 8000
|
|
Bow and arrow invented
|
|
|
c. 6300
|
|
Dugout canoes in Mediterranean region
|
|
|
c. 5000–3000
|
|
Copper Age
|
|
|
c. 4500
|
|
Ox-drawn plow invented in
Mesopotamia
|
|
|
c. 3400
|
|
First use of bronze in Crete
|
|
|
c. 3300
|
|
Wheel used in Mesopotamia
|
|
|
c. 3200
|
|
Bronze Age begins in Middle
East
|
|
|
c. 3000
|
|
Peanuts, avocados, sweet peppers cultivated in Peru
|
|
|
c. 2500
|
|
Potter’s wheel invented in China
|
|
|
c. 2100
|
|
Mesopotamia: Circle divided into 360 degrees
|
|
|
c. 1600
|
|
Hittites (Asia) make
first iron works
|
|
|
c. 1200
|
|
Iron Age in Europe
|
|
|
c. 1100
|
|
Decimals used in China
|
|
|
c. 1000
|
|
Beginnings
of geometry and equations
|
|
|
c. 1000
|
|
Use of natural gas
|
|
|
c. 750
|
|
Babylon: Tracking of planetary motion
|
|
|
c. 700
|
|
Coins first used in Greece
|
|
|
c. 650
|
|
Use of water clocks in Assyria
|
|
|
c. 585
|
|
Thales develops
early mathematics
|
|
|
c. 582–507
|
|
Pythagoras, Greek philosopher
|
|
|
c. 475
|
|
Steel made in India
|
|
|
c. 460–370
|
|
Hippocrates, medical pioneer in
Greece
|
|
|
c. 425
|
|
Atomists in Greece
|
|
|
c. 400
|
|
Crossbow in China
|
|
|
c. 325
|
|
Use of zero and decimals in India
|
|
|
c. 310
|
|
First aqueduct in Rome
|
|
|
295
|
|
Euclidian geometry developed
|
|
|
293
|
|
Leap year on calendar in Egypt
|
|
|
287–212
|
|
Archimedes, Greek
mathematician
|
|
|
c. 280
|
|
First lighthouse built in
Alexandria
|
|
|
c. 275
|
|
Cast iron process developed in China
|
|
|
c. 275
|
|
Aristarchus argues that Earth orbits the
sun
|
|
|
c. 240
|
|
Eratosthenes predicts tilt of planet’s
axis
|
|
|
c. 125
|
|
Use of negative numbers in China
|
|
|
c. 100
|
|
Camels used in the Sahara
|
|
|
86
|
|
System of crop rotation used in
China
|
|
|
c. 50
|
|
Glass-blowing perfected in Rome
|
|
|
46
|
|
Julian calendar adopted in
Rome
|
|
|
c. 23
|
|
Vitruvius’s On Architecture
|
40,000 BCE–1 BCE: Science & Technology
