At present, popular anthropological research holds that these indigenous people may be Asians who lived in Mongolia in ancient times and migrated to America through a series of island chains in the Bering Strait or the Pacific Ocean, because they are very similar to Asians today in skin and bone characteristics, and they can also make and use pottery, carpentry and so on.

There are a large number of potato plants in Latin America, among which cassava and sweet potato are the favorite foods of indigenous people. It is precisely because of the great geographical discovery that potatoes were introduced to Asia and Europe, and the world population increased greatly.

Cassava and sweet potato, which are often eaten in Cuba today, have been very popular foods since indigenous times.

The common people's habit of processing cassava is to peel off the crust as hard as the scab shell and rinse off the thick, pungent and greasy slurry.

Then cut it into finger-length pieces, spread it evenly on the baking tray, heat it in the oven until the white cassava becomes translucent and soft, then take it out and pour the broth. Cassava will absorb the soup, then sprinkle with salt and garlic, and squeeze some lemon juice when eating.

It is fragrant and smooth, and it melts in the mouth. Besides potatoes, fried vegetables and bananas are also common. Bananas, plantains and vegetable bananas are widely planted in Cuba, among which vegetable bananas are hard and tasteless, but they are crispy and delicious after being sliced, dried and fried.

Corn is also a common crop in Latin America. The ancients liked to grind corn into batter, then pour it into a bag made of corn leaves, tie it up, fry it in a pot, steam it in a pot, or bury it in the ground and bake it on the fire. This food is called corn zongzi.