Mustafa Kemal Atatürk was the military commander and statesman who founded the Republic of Turkey from the ruins of the Ottoman Empire. His sweeping secular reforms — abolishing the caliphate, replacing Arabic script with the Latin alphabet, granting women the right to vote — transformed Turkey into a modern nation-state. May 19 is celebrated as Commemoration of Atatürk, Youth and Sports Day in Turkey.

Ho Chi Minh was the communist revolutionary leader who led the Vietnamese independence movement against French colonial rule and later against American intervention. As president of the Democratic Republic of Vietnam from 1945, he guided North Vietnam through the Vietnam War until his death in 1969. His legacy remains deeply contested outside Vietnam.

Dame Nellie Melba was the first Australian musician to achieve international recognition, becoming the most celebrated soprano of the late Victorian era. The dessert Peach Melba and Melba toast were both named in her honour. She trained in Melbourne and Paris before conquering the stages of Covent Garden and the Metropolitan Opera.

Johns Hopkins was a Baltimore businessman and abolitionist whose posthumous bequest of $7 million — the largest philanthropic gift in American history at the time — founded both Johns Hopkins University and Johns Hopkins Hospital in 1876, establishing a model for research universities that transformed American higher education.

Nancy Astor, Viscountess Astor, was an American-born British politician who in 1919 became the first woman to take a seat in the House of Commons. A Conservative MP for Plymouth Sutton, she was known for her sharp wit and her battles for women's rights and social reform.