Oceania theory suggests that people came across the Pacific Ocean. Linguists and anthropologists noticed that the culture and languages of South America had oddly similar traits to those of Australia and Polynesia. This theory would also mean people would have had to use boats. The best evidence of this theory is the finding of the Kennewick Man. The 9,500-year old Kennewick skeletal remains were found in Washington State in the nineties. The features of the remains are in line with the Ainu, a native people of Japan. (Cattelino and 3 others, 2014) However, just there has been no evidence for Stone Age boats, and stone artifacts found in western coast of America are generally younger than those found in eastern sites. (Gajewski and 2 others,