I love these little nuggets of history, but as any glance at any alternative history (video) essay tells you, there is never just one causal link and usually dozens of factors.
The 1860s were probably the high water mark for British power in the world, but as for weird things that chnaged all that try this one:
- Frederick Tudor created the ice industry (think what the hero from Frozen did), allowing storage of buffalo and cattle beef in trains and ice houses in chicago
- which travelled by boat through the great lakes and over the recently dug Eerie canal and out New York and across the Atlantic to cause world wide economic depression as agricultural societies collapsed due to the competition
- which meant traditional MPs and rural power was upended
- and new industrialists coukd afford to pay their politicians while the landed gentry found there was a massive rural depression
There are so many fascinating threads through history.