MIAMI — It was supposed to be a carefully planned anniversary to mark one of the most important and widely praised moments in Hillary Rodham Clinton’s political career — and to remind the country, ahead of a likely 2016 presidential campaign, about her long record as a champion for the rights of women and girls.

Instead, as Mrs. Clinton commemorates her 1995 women’s rights speech in Beijing in back-to-back events in New York, she finds herself under attack for her family foundation’s acceptance of millions of dollars in donations from Middle Eastern countries known for violence against women and for denying them many basic freedoms.

This was not how she intended to reintroduce herself to American voters.

Mrs. Clinton’s glide path to a likely April announcement that she will seek the presidency was built around women’s issues. Advancing women has been her central life’s work, as she and her admirers say proudly; she made it a priority as secretary of state and focused on it as a philanthropist. But that focus also allowed Mrs. Clinton, who played down her gender in 2008, to frame her second attempt at the White House in what could be one way to make it special and new: as a shot at history for her and for all women.

And for someone who has so long been lampooned, and demonized on the right, as overly calculating, playing up her gender as a strength would also allow her to demonstrate her nurturing, maternal — and newly grandmotherly — side to voters whom she may have left cold in the past.