Sentence:  The Mongolid (<WSD>Tungid</WSD> and north Sinid) strain of the prehistoric Japanese must, to a large extent, be attributed to arrivals from Korea by way of the Tsushima straits, attested to by finds of clay vessels with pointed bottoms and with roller-stamped décor such as were made at Sobatu (north Kyushu). 
Meaning of the word marked with <WSD> tags:  An individual of a people of Inner Mongolia and parts of Siberia.