“To find the latitude at midday, the pilot must look at the sun through the two small holes of the alidade of the astrolabe, holding the instrument by its ring so that it hangs plumb... Once the altitude of the sun is measured, the pilot must consult the tables of the Sun's declination, which have been calculated by the astrologers and mathematicians of Lisbon and Coimbra...”
—Instructions from a Portuguese navigation manual, *Regimento do Astrolábio* (Rule of the Astrolabe), c. 1509
The developments described in the manual most directly reflect which of the following historical processes in the period 1450–1750?
- AThe sudden reliance of Asian merchants on European pilots to navigate trade routes due to European mastery of seasonal monsoon wind patterns
- The cross-cultural diffusion and synthesis of classical, Islamic, and Asian scientific knowledge in Western EuropeAnswer
- CThe rise of free-market capitalist enterprises that dismantled mercantilist state monopolies over transoceanic trade
- DThe transition from direct political administration of colonies to modern economic imperialism in the Americas
Answer
The cross-cultural diffusion and synthesis of classical, Islamic, and Asian scientific knowledge in Western Europe
The correct option is correct because the development of navigational tools like the astrolabe and their corresponding astronomical tables in Western Europe was the direct result of cross-cultural diffusion and synthesis of Greek (classical), Islamic, and Asian knowledge. European mariners adopted and adapted these technologies to undertake transoceanic voyages.
Step-by-Step Solution
Key Concept
The role of cross-cultural technological diffusion in the development of European maritime capability.