Monagrillo (also known as He-5) is an archaeological site in south-central Panama with ceramics that have been shown by radiocarbon dating to have an occupation range of about 2500 BC—1200 BC. The site is important because it provides the earliest example of ceramics in Central America along with one of the earliest examples of maize agriculture in the region. The site lies along Panama's most fruitful seacoast.^[2] and reached a maximum living area of 1.4 ha ^[3]

• http://en.wikipedia.org/wiki/Monagrillo (archaeological site)