The Greek mathematician, Euclid, limited the constructions in his Elements of Geometry to those that could be done with an unmarked straight edge and rudimentary compass. Ancient Roman dividers ...

Primarily, the compass was used for geomancy for a long time before it was used for navigation Ancient Chinese alchemists realized that the magnetite ore would point towards a magnetic north. Their ...

The greatest advance in navigation came with the compass. The Chinese apparently knew about the powers of magnetism as early as the third millennium B.C., when, historians tell us, one army ...

It features 632 sites across the UK, Europe and into Africa including urban settlements and mountain passes The map covers approximately 4 million square miles (10 million square km) of land and ...

The ancient city of Troy was located along the northwest ... These are frequently identified as Troy I-Troy IX. On the interactive map on the home page, the levels are represented by different ...

Bonampak means "painted walls" in Maya, and the site is known for just that: beautiful murals depicting the life of the ancient Maya. The three-roomed Templo de las Pinturas has remarkably well ...