Archaeologists have recovered artifacts from a Mongol warship sinking sunk off Takashima Island over 750 years ago during Kublai Khan’s 1281 Koan War invasion.

The ship, part of the Jiangnan Army fleet, yielded a short sword, bundled arrows, engraved chopsticks, ceramics, iron helmets, and cannonballs, providing insight into both military and daily life aboard the vessel.

Radiocarbon dating indicates the timber was cut around 1253, and the ship was likely built in Zhejiang Province, with cargo from Jiangsu kilns.

Excavations also revealed undecomposed organic matter, such as fish bones and wooden tools, offering a rare glimpse into the everyday lives of soldiers, Popular Mechanics has reported.

While only three wrecks have been found so far, researchers believe Imari Bay holds many more remnants of the 4,400-ship Mongol armada.