ambitious engineering projects

Megalithic Monuments

How was monumental Neolithic architecture constructed and how was it used?

The massive tombs and ceremonial structures built from huge stones in the Neolithic period are known as megalithic architecture, from the Greek words for “large” (megas) and “stone” (lithos). Archaeologists disagree about the nature of the societies that created them. Some believe megalithic monuments reflect complex, stratified societies in which powerful religious or political leaders dictated their design and commanded the large workforce necessary to accomplish these ambitious engineering projects. Other interpreters argue that these massive undertakings are clear evidence for cooperative collaboration within and among social groups, coalescing around a common project that fueled social cohesion without the controlling power of a ruling elite. Many megalithic structures are associated with death, and recent interpretations stress the fundamental role of death and burial as public theatrical performances in which individual and group identity, cohesion, and disputes were played out.

Elements of Architecture

Post-and-Lintel and Corbel Construction

Of all the methods for spanning space,  post-and-lintel  construction is the simplest. At its most basic, two uprights (posts) support a horizontal element ( lintel ). There are countless variations, from the wood structures and underground burial chambers of prehistory, to Egyptian and Greek stone construction, to medieval timber-frame buildings, and even to present-day cast-iron and steel construction. Its limitation as a space spanner is the degree of tensile strength of the lintel material: the more flexible, the greater the possible span. Another early method for creating openings in walls and covering space is corbeling, in which rows or layers of stone are laid with the end of each row projecting beyond the row beneath, progressing until opposing layers almost meet and can then be capped with a stone (capstone) that rests across the tops of both layers.