and Visualizing the World Aswan Eratosthenes c 276 BC E c 195 BC E Alexandria Aswan Alexandria Aswan Alexandria 0 712 Aswan Alexandria 150 of a Circle 360 Eratostheness calculation ID: 216478
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Slide1
Inventing Geography
and
Visualizing the WorldSlide2
Aswan
Eratosthenes
(
c. 276 BC
E
– c. 195 BC
E)
AlexandriaSlide3
Aswan
AlexandriaSlide4
Aswan
AlexandriaSlide5
0°
7°12’Slide6Slide7
Aswan
Alexandria
1/50 of a Circle (360°)Slide8
Eratosthenes’s calculation:
Alexandria to Aswan = 1/50 of the diameter of Earth
Alexandria to Aswan = 5,000 stadia (c. 490 miles)
50 x 490 = 24,500 miles
Actual circumference = 24,901 milesSlide9
Eratosthenes coins the word “geography”Slide10
Claudius Ptolemy, 85-165 CE
Refined Eratosthenes’ calculations.
Reduced the circumference of Earth.
Produced the first real map of the world.Introduced the concept of map grids to plot location.Slide11Slide12Slide13Slide14Slide15
Chapter 8Understand The Gupta Empire in the “Classical Age” The reform of Hinduism
Indian Buddhism
“The Global Trade of Indian Pepper” Family life and gender.Slide16Slide17
Chapter 9Understand: How the Chinese balanced the ideas of Confucius
Legalism
Daoism
The achievements of Cheng, the “First Emperor” The achievements of the Han dynasty Buddhism in ChinaSlide18
The world in the reigns of
Antoninus Pius
(138-161) Vologases IV (147-191) Vāsishka
(140-160) Huan Di (146-168)
Slide19