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trade declined in the 1500’s when Portugal invaded and tried to run the trade for its own profit.
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In 1405 the Yongle Emperor of China's new Ming Dynasty sent out the first of seven expeditions to visit all of the empire's major trading partners around the Indian Ocean.
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Christianity spread through missionaries as well, after the church split into two factions in 1054
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The monsoon Market place was well recognized
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The magnetic compass (first used by the Song dynasty in China, 960 - 1279 CE) aided sailors in maritime navigation, making it easier to travel long distances by sea
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After 900 CE, Islam spread to southern Europe, central and southeast Asia, sub-Saharan and east Africa through missionaries and trade, and Islamic traditions often mixed with local culture
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To determine latitude at sea by observing the distance between the horizon and a particular star at the same time each night. It consists of a small, rectangular card with a knotted cord passed through it. The concept is that these reference stars, observed at their highest point in the night sky, would always appear the same distance from the horizon if the position of the ship was at a certain latitude.
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trade began with small trading settlements
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Sailors knew how to use monsoons to maritime travel
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Scylax of Caryanda made a voyage into the Indian Ocean from 510-515 BCE. He went exploring in the service of King Darius of Persia (528-468 BCE), who had heard of the riches of India and wanted to discover the mouth of the Indus River.
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Greek and Roman sailors and traders entered the Indian Ocean after 500
BCE, sent there by the Persian ruler Darius I. -
Achaemenid Empire in Persia (550–330 BCE),
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Alexander the Great sent Nearchus from the
Indus to the Arabian Gulf in 326 BCE -
Between 600 and 300 BCE, Hinduism, Buddhism, and Jainism spread across the Bay of Bengal to Southeast Asia.
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The Chola Empire (3rd century BCE–1279 CE) in southern India dazzled travelers with its wealth and luxury, blossoming due to maritime trade.
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the Han Dynasty in China (202 BCE–220 CE)
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Mauryan Empire (323-185 BCE) of India
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the Roman Empire (33 BCE–476 CE) in the Mediterranean.
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The Portuguese (c. 1400) developed the caravel, which was useful for navigating the difficult winds near West Africa