Wang Huiyao of the China Western Returned Scholars Association, which celebrates its centenary this year, observes that sea turtles have returned in five waves.
Known as the Angel of the Crimea, Nightingale returned to England and received a hero's welcome, a medal from Queen Victoria and a gift of 250,000 dollars.
She and her colleagues published papers together in top science journals, and they built research partnerships that lasted long after they returned to their home countries.
Venezuela's opposition leader Juan Guaido says he's returning to his country after a week-long tour of South America to amass support for his attempt to remove President Nicolas Maduro from power.
After her return home, Nightingale devoted all her energy and intellect to getting a Royal Commission established so that she could look into preventable deaths in the Crimean War.