I’v been mulling over a new timeline. Basically, the United States and Britain unite in the mid-1800s. I have a bit planned out for after unification, but am not entirely sure about how exactly it will happen. My thought is generally that pan-Anglo-Saxon thought emerges in the 1830s and 1840s and becomes widespread enough that it causes unification, but exactly what events could cause the emergence of the idea and the eventual unification is eluding me.
Does anyone have any suggestions?