The phenomenon bravery of the warriors due to indigenous sense of homeland protection and of course, the elegant eagle symbols among American Indians and the Assyrians drove my childhood’s mind the idea these people met in the ancient times.
Today, I am not the only one as many Assyrians express the same idea. They cannot help it as they see the common nature inspired themes and designs, the group dances, and the similarity between the melodies of Raweh sang by the Assyrian tribes’ men and women of Assyria (northern Iraq) to those Native American chants. This is all crazy as they are two different people born and raised on different continents.
I might be wrong. Those who dare thinking the same might be wrong, but Chief Joseph had an actual Assyrian cuneiform tablet in his medicine bag when he got captured by American army in 1877. The army took the small tablet, which later on ended up at the West Point Museum.
Chief Joseph a Native American leader of Nez Perce tribe in Montana was a man of honor hence what he said about the tablet is the truth coming from a great warrior.
Mary Gindling of History Mysteries writes:
"The chief said that the tablet had been passed down in his family for many generations, and that they had inherited it from their white ancestors. Chief Joseph said that white men had come among his ancestors long ago, and had taught his people many things. His story echoes those told by Native Americans in both North and South America about white culture bringers. But in this case, Joseph had a souvenir to demonstrate the truth of his story."
The ancient tablet inscribed in cuneiform and made of baked clay is one inch square in size. The translation by Professor Robert Blggs of Chicago revealed it to be a receipt for a lamb, dated in the year that Enmahgalanna was installed as high priestess of Nanna, or about 2042 B.C. The tablet was presumed to have been made in southern Iraq.
The tablet created a mystery. The mystery continued by finding other supporting evidence, a cuneiform tablet which was found in Georgia, U.S. and translated from the ancient Sumerian language. Author and researcher, Gloria Farley tells us how the second tablet was found.
“The Georgia tablet was presented in the 1973 Westville Conference sponsored by Dr. Joseph B. Mahan. Mrs. Joe Hearn described how In 1963, while digging a new flower bed on her property in northwestern Georgia not far from the Chatahoochee River, her shovel had struck a small pillow-shaped tablet made of lead. Dr. Mahan thinks it had been made on the spot by the lost-wax method, as other irregularly shaped pieces of once molten lead with the same patina were also found on her property. The cuneiform script, according to Dr. Curtis Hoffman, describes how a scribe named Enlila was aware that it was the 37th or 38th year of the reign of King Suigi of Ur, which by our reckoning would have been about 2040 B.C. It recorded the sale of sheep and goats, which apparently had been transported overseas to America, for sacrifice to Utu the sungod and the Goddess Lama Lugal.” 
It is noted that the dates of the two cuneiform tablets are approximately the same.
According to some Internet resources, the Hearn tablet is in the possession of LaGrange College in Georgia, but there is no mention on college’s website. It is not clear if the college tries to distance itself from a controversial subject or not.
For over fifty years Gloria Farley of Heavener, Oklahoma researched evidence of pre-Columbian visitors to North America. In April 1980, a small heavy black stone was brought to her for her opinion. The design resembled a flower with a complicated base. It was found by an inmate of the Ouachita Correctional Center prison. She began processing the stone while having no idea what the symbol might represent. In her article “The Shawnee Creek Stone of Oklahoma”, she gives the possibility that the inscription on the Shawnee Creek Stone resembles Inanna, the goddess of love.
“Borrowing the stone, I made a latex mold and my son Mark Farley obtained a clear photograph, both of which were sent to Dr. Barry Fell. His returning telephone call told me that he believed the find to be of great importance, as the design resembles the seals from ancient Dilmun in the Arabian Gulf. (This is the name which the Arabs give to the Persian Gulf. Dilmun was located mainly on the island of Bahrain.) The inscription, said Dr. Fell, appears to employ the ideographs used by Dilmunian scribes, especially the ones for ‘Inanna, Goddess of Love and Queen of Heaven.’ He told me that Inanna also related to the Sumerians. Sumer is now modern Iraq.”
How the Enlils and worshipers of Inanna made it to America? Did they fly by Annunakies, or they came by foot or on the ships? We don’t know yet. What we know is that all the above evidence, even not extensively emphasized by scientific world yet, demonstrates a possibility of cross-cultural interaction between Native Americans and Assyrians in the past. The denial and willing to keep current America’s stereotype history intact might go well for some time, but the truth will reveal itself at the end, always.
Please read the related article Chief Joseph Carried the Star of Ashur
 The Shawnee Creek Stone of Oklahoma, A Possible Motif from Ancient Dilmun, With Supporting Evidence by Gloria Farley, Epigraphic Society Occasional Publications (vol.18 page 260-261)