The first grain used by humans was-

Mainly 8 food grains have been consumed by modern human society – Barley, Wheat, Rice, Maize, Millet, Sorghum, Rye and Oats. Cereal plants existed in the form of wild grass in different regions, which were grown by humans at different times in different regions in the form of seeds. If seen from a global point of view, Barley was first introduced in 8000 BC. Cultivated by humans in the country of Western Asia located between the Mediterranean Sea and Iran around. Later, around 8000 BC in these areas. Wheat was also grown in its vicinity.