In the early 160s AD, Galen moved to Rome to work and, with the exception of a brief return to Pergamum, spent the remainder of his life in the Roman capital. He became physician to the emperor Marcus Aurelius and would later serve in the same role to Aurelius's successors, Commodus and Septimius Severus.
A primitive corn was being grown in southern Mexico, Central America, and northern South America 7,000 years ago. Archaeological remains of early maize ears, found at Guila Naquitz Cave in the Oaxaca Valley, date back roughly 6,250 years; the oldest ears from caves near Tehuacan, Puebla, date ca. 3,450 BC.
So be thankful the next time you butter up a big, delicious ear of sweet corn. How many ears grow on a corn plant? Different corn plants have different numbers of ears, but much of the field corn grown in Iowa is bred to develop just one large ear rather than several incomplete ears. This approach usually yields better total production. How many kernels are there on an ear of corn? The number of kernels per ear can vary from 500 to about 1,200. A typical ear has about 800 kernels, according to corn experts.