Paging Clio for comment...
Yes, it's glorious when one of those moments that embodies a sense of change and hope happens, when the pendulum visibly swings and the glass stops falling hour by hour.
But what really matters is what happens after that: it's not the end, it's the beginning.
(E.g. the 'flapper vote', 1928, 10 years after the rather grudging concession of the vote to women ratepayers and professionals over 20, granting the parliamentary franchise on equal terms to men and women, didn't just happen. See also all the other causes that women knew they had to have the vote even to begin to tackle.)
History: not an event, a process. Ditto change.