The Thames Frost Fairs (1607-1814)
Open link in next tab
The Thames Frost Fairs in London
https://www.historic-uk.com/HistoryUK/HistoryofEngland/The-Thames-Frost-Fairs/
Between 1607 and 1814, there were a total of seven major frost fairs held on the frozen River Thames in the heart of London. These fairs hosted bull-baiting, pop-up pubs, and even saw a king or two taking part in the festivities!
(Added as a matter of curiousity, not to divert or disavow the our very real AGW.) This occurence is usually blamed on the 'Little Ice Age' ... cause still uncertain. The LIA is implicated in 500 years of misery for many Europeans. https://en.wikipedia.org/wiki/Little_Ice_Age