| GREATWALL | Defensive structure constructed in the 3rd century BC stretching from the Yellow Sea to the central Asian desert (5,4,2,5) |
| OFCHINA | Defensive structure constructed in the 3rd century BC stretching from the Yellow Sea to the central Asian desert (5,4,2,5) |
| PARTHIA | Country in ancient Asia, southeast of the Caspian Sea, destroyed by the Sassanids in the 3rd century |
| HOURGLASSES | Time-keeping devices thought to have been invented in Alexandria in the 3rd century |
| ORVIETO | City in modern-day Umbria, annexed by Rome in the 3rd Century BCE (7) |
| NICE | City on the French Riviera founded by Phocaeans from Marseille in about the 3rd century BC (4) |
| HAWKEBAY | Section of the eastern coast of the North Island of New Zealand stretching from the Mahia Peninsula in the northeast to Cape Kidnappers/Te Kauwae-a-Maui in the southwest |
| MANETHO | Egyptian priest of the 3rd century BC whose Greek Aegyptiaca (History of Egypt) originated the concept of pharaonic dynasties (7) |
| OFFASDYKE | A defensive earthwork along the Welsh border, stretching from the mouth of the Dee to that of the Severn |
| RUNES | The characters of an ancient Germanic alphabet, in use, especially in Scandinavia, from the 3rd Century to the Middle Ages (5) |
| EUCLID | Geometrician of the 3rd century BC (6) |
| NEOPLATONISM | Originating in the third century. what is the philosophical system generated by Plotinus and his successors? (12) |
| VENETO | Region of north-eastern Italy stretching from the Dolomites to the Adriatic Sea, including Venice (6) |
| PERICARDIUM | Membranous sac that surrounds the heart, anchored by ligaments to the central part of the diaphragm and the rear of the sternum (11) |
| KOREA | East Asian peninsula surrounded by the Yellow Sea and the East Sea (Sea of Japan). (5) |
| HANXIN | Third-century BC Chinese general, one of the 'Three Heroes' of the dynasty he helped to found (3,3) |
| EBRO | Spanish river that formed the dividing line between the Roman and Carthaginian occupations in third century BC (4) |
| MIDDLEEASTERN | From an area stretching from the Mediterranean to the Indian Ocean |
| WASH | The -; stretching from the south of Skegness to Hunstanton, England's biggest bay (4) |
| SOVIETUNION | Former northern Eurasian empire (1917/22-1991) stretching from the Baltic and Black seas to the Pacific Ocean. (6,5) |
