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Spacious Skies & Tilted Axes … The Benefits of an East/West Orientation.

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Presentation on theme: "Spacious Skies & Tilted Axes … The Benefits of an East/West Orientation."— Presentation transcript:

1 Spacious Skies & Tilted Axes … The Benefits of an East/West Orientation

2 Spacious Skies & Tilted Axes From Guns, Germs and Steel, p 177

3 Spacious Skies & Tilted Axes Diffusion of: –Plants and Animals: –Agricultural techniques –Other Technologies

4 Spacious Skies & Tilted Axes Examine Three Regions: –Eurasia (Diffusion from Fertile Crescent) –Africa –The Americas –First, Eurasia …

5 Spacious Skies & Tilted Axes From Guns, Germs and Steel, p 177

6 Spacious Skies & Tilted Axes Reasons for Rapid Diffusion in Eurasia: –Similar growing conditions –Little preemptive domestication –East/West Axis Predominant in Eurasia

7 Spacious Skies & Tilted Axes Why was East/West Axis Important: –Locations distributed East to West share the same latitude, generally leading to other similarities: Same day length Seasonal variations Rainfall & temperatures Similar diseases Types of vegetation

8 Spacious Skies & Tilted Axes Plants Programmed to Latitudinal Factors Day length |Seed germination Seasons |Seedling growth Climate|Flowering & baring fruit Same for Animals Bottom Line: East/West Axis Allowed Easier Diffusion in Eurasia

9 Spacious Skies & Tilted Axes Africa and Americas had Limited Diffusion due to North-South Orientation –Except for a few animals, the FC package did not arrive in S. Africa until Europeans arrived in 1652 –Except for Mexican corn, little diffusion occurred between: US – Mexico – Andes –Note: Evidence of little preemptive diffusion in Africa and Americas

10 Spacious Skies & Tilted Axes Caveat: –Latitude is not the only factor –Local topography and ecology play a role North America FC -> India FC -> China FC -> Africa

11 Spacious Skies & Tilted Axes Extension: –The principle of East/West diffusion applies to agriculture and much more Wheel(ox carts) Writing(royal propaganda, food inventories & bureaucratic record keeping) –While not directly related to ag diffusion, technological transfers followed the spread of food production.

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13 Assigned Readings Course Reader G G S For Wednesday:Library Tour For Friday:MID-TERM EXAM For Next Monday:Course (at least to p. 78)Reader G G S Medievil Sectionpp60-93 By Walburger


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