In 1961, as the Soviet Union sent the first humans into space, women in Japan were celebrating a breakthrough of their own.

That year, a Tokyo-based company called Anne ¡ª pronounced ¡°an-neh¡± and named after Anne Frank, the German-born Holocaust victim ¡ª introduced the country¡¯s first mass-produced disposable menstrual pads.

A newspaper advertisement announced the product¡¯s arrival with a strikingly simple message: ¡°Thank you for waiting 40 years!¡±