| MIDDLEAGES | In European history, the period between the end of the Roman Empire and about 1500 AD (6,4) |
| DARKAGES | Period between the end of the Roman empire and the Renaissance (4,4) |
| MESOLITHIC | The period between the Palaeolithic and the Neolithic (10) |
| JAZZAGE | Term for the period in the U.S. between the end of World War I and the start of the Depression (4,3) |
| PERINATAL | Relating to the period between the seventh month of pregnancy and the first month of the baby's life (9) |
| URAL | The conjectural conclusion is about 1500 miles long! |
| MOA | Which huge New Zealand bird probably died out in about 1500? (3) |
| VENT | Complain about going an entire month between the end of "Drag Race" season 16 and the beginning of "All-Stars" season 9, say |
| LEADTIME | The period between the design and production of a product (4,4) |
| MODERN | In history, the period or era since the Middle Ages (6) |
| PALAEOLITHIC | In history, the period sometimes called the Old Stone Age (12) |
| AGES | The Middle ___ (period from around 500 to 1500 AD) |
| TSESAREVNA | In Russian history, the wife of a tsar's eldest son (10) |
| ANTOINETTE | Big name in 18th-century European history |
| DARK | Period in European history from around the late 5th-century to about 1100 AD (4,4) |
| OMER | In Judaism, the seven-week period between the second day of Passover and the first day of Shavuot (Pentecost) (4) |
| EARLYMODERN | Designating the period of European history from the end of the Middle Ages to around 1750 (5,6) |
| PLIOCENE | Second of the two epochs comprising the Neogene period, between the Miocene and the Pleistocene (8) |
| HUNDREDDAYS | The period between Napoleon's arrival in Paris from Elba in March 1815 and his abdication in June 1815 (7,4) |
| GABLE | What is the triangular upper part of a wall between the ends of a pitched roof? (5) |