**Land Exploration**:
– Zhang Qian explored beyond the Tarim Basin in the 2nd century BC.
– Emperor Wu of Han expanded territories into the Western Regions.
– Gan Ying reached the Persian Gulf in 97 AD.
– Xuanzang’s pilgrimage to India increased knowledge of Buddhism in China.
**Maritime Exploration – South China Sea**:
– Seasonal monsoon winds controlled navigation before the 11th century.
– Chinese navy of the Qin dynasty period assisted invasions.
– Ancient shipyard in Guangzhou dated to the early Han dynasty.
– Chinese merchants explored Southeast Asia in the 15th-18th centuries.
**Maritime Exploration – Indian Ocean and Beyond**:
– Chinese envoys sailed into the Indian Ocean from the 2nd century BC.
– Chinese sailors visited ports in Southeast Asia, India, Sri Lanka, and beyond.
– Admiral Zheng He led expeditions to the Indian Ocean from 1405 to 1433.
**Exchanges**:
– Sa`d ibn Abi Waqqas introduced Islam to China in 650.
– Chinese exploration led to exchanges with various cultures.
– Tang and Song dynasties were significant periods for exchanges.
– Chinese Muslims and foreigners played roles in cultural exchanges.
**Technological Advancements**:
– Invention of stern-mounted rudder in 1st century AD in China.
– Ma Jun built the first south-pointing chariot incorporating a differential gear.
– Shen Kuo described the magnetic needle-compass in 1031–1095 AD.
– Zhu Yu described the use of separate bulkhead compartments in Chinese ships.
