In 1911, California voters approved the constitutional processes of initiative, referendum, and recall. Through these processes, voters can adopt a change in law (an initiative), disapprove a law passed by the Legislature (a referendum), or remove an elected official from office (a recall).
Probably the most important change that happened at the time was that C - Women worked jobs that had ben held almost exclusively by men.
Due to the fact that the majority of men, or at least a good portion of them, were on the battlefield in Europe, women had to take over the role in certain key areas that were necessary for the victory of the US.