Monuments Without AgricultureIt used to be a truism among archaeologists that farmers build monuments, mobilizing huge amounts of labor, but foragers do not. This, we now know, is overstated. The most famous exception is Göbekli Tepe, an extraordinary cluster of sunken chambers with massive, carved stone pillars near the Turko-Syrian border. Construction began here by 9500 BCE, just as experiments with domestication were beginning not far to the south, but all the evidence suggests that the builders were hunters and gatherers.16 Stonehenge, the most famous prehistoric monument of all, was built between roughly 3000 and 2600 BCE by herders rather than farmers,17 but as early as 8000 BCE, foragers had set up a series of monumental posts (perhaps totem poles) at the site. At Locqmariaquer in Brittany, fishermen dragged a 20-meter-tall, 350-ton stone stele for 5 kilometers around 4500 BCE and then erected it over a communal tomb. In coastal Peru, other fishermen started building mounds at Aspero, Caral, and Sechin Bajo before 3700 BCE. Foragers in Louisiana heaped up giant earthworks at Watson Brake around 3400 BCE and even bigger ones, using a standardized unit of measurement, at Poverty Point around 1600 BCE.18

In 1991, the earliest known roundel was found in Germany, also corresponding to the Stroked Pottery culture. Called the Goseck Circle, it is 246 feet (75 m) in diameter and had a double wooden palisade and three entrances. Because two of the entrances correspond with sunrise and sunset during the winter and summer solstices, one interpretation of the Goseck Circle is that it functioned as an observatory or calendar of sorts, according to a 2012 study in the journal Archaeological Papers of the American Anthropological Association (opens in new tab).

In 2019, an unusually dry summer caused the waters of the Valdecañas Reservoir to recede, revealing a monument that has come to be referred to as the “Spanish Stonehenge.” NASA satellites captured images of the exposed stones known as the Dolmen of Guadalperal, which experts suspect may have been built sometime in the second or third millennium BCE.