Wonder 01
The Dancing Plague 1518
Strasbourg, Holy Roman Empire · Frau Troffea and some four hundred involuntary dancers.
In July 1518 a woman began to dance in the street and did not stop. Within a month the chronicles count some four hundred. The city hired musicians and cleared halls, on the theory that the afflicted should dance it out. Several died of exhaustion. The dancing ceased in September, for no satisfactory reason. The city's account books still record the hire of the musicians.
Papers. Strasbourg city chronicles and council records; parish burial registers.
Wonder 04
The Iron Through the Head 1848
Cavendish, Vermont · Phineas Gage, railway foreman, aged twenty-five.
On 13 September 1848 an explosion drove Gage's tamping iron — 1.1 metres long — clean through his skull. He stood up, spoke, and walked to the cart. He lived twelve further years, carrying the iron with him as documentation. His skull and iron are preserved at Harvard, where sceptics may measure them at leisure.
Papers. Dr John Martyn Harlow's reports (1848, 1868); skull and iron, Warren Anatomical Museum.
Wonder 07
The Treacle Flood 1919
Boston, Massachusetts · 8,700,000 litres of molasses, formerly in a tank.
On 15 January 1919 a steel tank burst and released a wave of molasses some 4.5 metres high at an estimated 56 kilometres per hour. Twenty-one persons were killed; 150 injured. An elevated railway girder was bent. The particulars were settled in court, at considerable expense to the United States Industrial Alcohol Company.
Papers. Boston Post and Boston Globe, January 1919; Massachusetts Superior Court records, 1920–1925.