The Rift Valleys and the Geology of East Africa. J. W. Gregory

1923 ◽  
Vol 31 (2) ◽  
pp. 163-164
Keyword(s):  
East Africa ◽  
Rift Valleys

The Rift-Valleys and Geology of East Africa

1922 ◽  
Vol 59 (2) ◽  
pp. 141
Author(s):  
A. M. D. ◽  
J. W. Gregory
Keyword(s):  
East Africa ◽  
Rift Valleys

2. The peopling of the earth

2015 ◽  
pp. 12-28
Author(s):  
Stewart A. Weaver
Keyword(s):  
Pacific Ocean ◽  
East Africa ◽  
Cultural Exchange ◽  
Homo Erectus ◽  
The Earth ◽  
The Pacific ◽  
The Pacific Ocean ◽  
Rift Valleys

When did exploration begin and who were the first explorers? ‘The peopling of the earth ’ shows that the deep origins of exploration are inseparable from the long process of the peopling of the earth that began between one and two million years ago, with the migration of Homo erectus out of the East Africa rift valleys. It considers the Polynesian seafaring people whose remarkable exploratory oceanic migration resulted in settlements and cultural exchange around and across the Pacific Ocean. The maritime exploration of the Norse reached Iceland, Greenland, and Newfoundland. The global circle of humanity closed, and the first of history's two big stories, that of human divergence, ended, and the second, that of human convergence, began.

scholarly journals The Rift Valleys and Geology of East Africa

Nature ◽  
1922 ◽  
Vol 109 (2730) ◽  
pp. 233-234 ◽  
Author(s):  
G. W. L.
Keyword(s):  
East Africa ◽  
Rift Valleys

Drawers of Water II: assessing change in domestic water use in East Africa

Waterlines ◽  
2003 ◽  
Vol 22 (1) ◽  
pp. 22-25 ◽  
Author(s):  
John Thompson ◽  
Ina Porras ◽  
Munguti Katui-Katua ◽  
Mark Mujwahuzi ◽  
James Tumwine
Keyword(s):  
East Africa ◽  
Water Use ◽  
Domestic Water

Coffee and qat on the Royal Danish expedition to Arabia – botanical, ethnobotanical and commercial observations made in Yemen 1762–1763

2015 ◽  
Vol 42 (1) ◽  
pp. 101-112
Author(s):  
I. Friis
Keyword(s):  
East Africa ◽  
Arabian Peninsula ◽  
Made In

In spite of widespread consumption of coffee in Europe at the time of the Royal Danish expedition to Arabia 1761–1767, little was known of the cultivation of coffee in Yemen and of the Arabian coffee export to Europe. Fresh leaves of qat were used as a stimulant on the Arabian Peninsula and in East Africa, but before the Royal Danish expedition to Arabia this plant was known in Europe only from secondary reports. Two members of the expedition, Carsten Niebuhr and Peter Forsskål, pioneered studies of coffee and qat in Yemen and of the Arabian coffee export. Linnaeus' instructions for travellers requested observations on the use of coffee, but otherwise Forsskål and Niebuhr's studies of coffee and qat were made entirely on their own initiative. Now, 250 years after The Royal Danish expedition to Arabia, coffee has become one of the world's most valuable trade commodities and qat has become a widely used and banned drug.

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