| Clue | Source | Date |
|---|---|---|
| Growing concern in the seventeenth century? | ||
| Dutch market craze of the late 1630s | LA Times Daily | 21 Jul 2023 |
| Market phenomenon of the 1630s Dutch Republic | Wall Street Journal | 28 Jan 2023 |
| 17th-century craze involving bulbs | LA Times Daily | 01 Aug 2020 |
| 17th-century craze involving bulbs | The Washington Post | 01 Aug 2020 |
| Dutch craze of 1636-37, considered the first major speculative bubble | New York Times | 27 Apr 2019 |
| Dutch craze of 1636-37, considered the first major speculative bubble |