What if women were given the vote, in the UK & USA, in the late 1890s, instead of 1919, akin to the manner in other regions like Australia & New Zealand.
Could the earlier female vote, in the UK & USA, have any effect upon their respective governments?
If so, what effects may these be? Could have the Boer War or the Spanish American War be avoided, for example? Likewise could have WWI been avoided thanks to the female franchise?
And how could the rest of the history of the 20th century be altered as a result?
Anything else?