Chinese Junk Boats were first built in the second century (circa 200 AD) but flourished during the Song and Ming Dynasties.

During the Ming Dynasty, under the capable leadership of Admiral Zheng He, the world became much smaller as foreign lands were peacefully discovered and merchant trade established. The Chinese junk proved to be the greatest ship design the world had ever known, with Treasure Ships in the Chinese fleet which measured 150 meters!

Until the 1980s, there were thousands of Chinese Junk Boats in Hong Kong Harbour…

Zheng He (1371–1433 or 1435), formerly romanized as Cheng Ho, was a Hui Chinese mariner, explorer, diplomat, and fleet admiral during China’s early Ming dynasty. Born Ma He, Zheng commanded expeditionary voyages to Southeast Asia, South Asia, Western Asia, and East Africa from 1405 to 1433. His larger ships stretched 120 meters in length (Columbus’s Santa Maria, for comparison, was 26 meters). These carried hundreds of sailors on four tiers of decks.

As a favorite of the Yongle Emperor, whose usurpation he assisted, Zheng He rose to the top of the imperial hierarchy and served as commander of the southern capital Nanjing (the capital was later moved to Beijing by the Yongle Emperor). These voyages were long neglected in official Chinese histories but have become well known in China and abroad since the publication of Liang Qichao’s Biography of Our Homeland’s Great Navigator, Zheng He in 1904.[3][4] A trilingual stele left by the navigator was discovered on the island of Sri Lanka shortly thereafter.

— from wikipedia.org