This phrase is from a song that some would call the anthem of the suffrage movement, The March of Women. Here is an excerpt, which is also printed on the backing of this beautiful letterpress piece.
Life, strife—those two are one, Naught can ye win but by faith and daring. On, on—that ye have done But for the work of today preparing. Firm in reliance, laugh a defiance, (Laugh in hope, for sure is the end) March, march—many as one, Shoulder to shoulder and friend to friend.
From the March of Women by Dame Ethel Smyth. 1911.
While all women were granted the right to vote in 1920, women of color continued to fight the widely spread and racially motivated voter suppression tactics employed against them until the Voting Rights Act passed in 1965. I celebrate the initial victory in 1920 while holding space for the fact that the fight for equality was not finished then and it is not finished now.