| Answer | Crossword Clue |
|---|---|
| IRONAGE | When blacksmithing began |
| YEARONE | When it began |
| IRONAGE | When forging began |
| AGEFIVE | When Mozart began composing |
| DDAY | When Operation Overlord began |
| EOCENE | Epoch when mammals began |
| WWI | When tank warfare began: Abbr. |
| TEENS | When the Dada movement began |
| DCCI | When John VI's papacy began |
| APR | Mo. when the Civil War began |
| HST | Pres. when the cold war began |
| DDAY | When the Battle of Normandy began |
| SEPT | When W.W. II began: Abbr. |
| MARCHELEVENTH | When the Blizzard of 1888 began |
| MDIII | When Leonardo began painting the Mona Lisa |
| SCATTEREDUNDERSHOWERS | What picnickers did when raindrops began to fall? |
| ASQUITH | British P.M. when W.W. I began |
