L. L. Zamenhof

L. L. Zamenhof was the creator of Esperanto, the most widely used constructed international auxiliary language.

15 December 1859

Born on the same birth day (15 December): Bapu (director) • David Howells • Eila Campbell • Harold Abrahams • Jenifer Brening • Ned Brower • Paul Kaye • Paul Simonon • Robert Charles Wilson • Tim Reynolds

Born in the same month (December 1859): Georges Seurat • Gustave Kahn • John Jellicoe, 1st Earl Jellicoe • Paul César Helleu • Venustiano Carranza • William Stephens (American politician)