Born on This Day: March 15

American president whose expansion of executive power and mass politics reshaped the nation, while his removal policies caused enduring harm.

German physiologist whose antitoxin therapy transformed treatment of diphtheria and helped establish immunology.

American horticulturist and educator whose research and institution-building shaped agricultural science and rural education.

American public administrator whose New Deal leadership advanced infrastructure, conservation, and public works.

Peruvian poet whose innovative language and humanistic vision made him a major figure in world literature.

American jurist whose advocacy and Supreme Court service advanced gender equality and constitutional law.

Canadian filmmaker whose distinctive treatment of technology, identity, and the body influenced modern cinema.

American musician whose fusion of funk, rock, soul, and social commentary transformed popular music.