On This Day in History

Friday, December 25, 2026

Tim Berners-Lee introduces the WorldWideWeb browser

1990

British computer programmer Tim Berners-Lee introduced WorldWideWeb, the world's first web browser and a WYSIWYG HTML editor. (WorldWideWeb)

1725 Bach's Christmas cantata BWV 110 is first performed — J. S. Bach led the first performance of the Christmas cantata Unser Mund sei voll Lachens, BWV 110, making laughter audible in the singing.
1809 Ephraim McDowell performs a pioneering ovarian surgery — American physician Ephraim McDowell performed the world's first removal of an ovarian tumor.

Events from Wikipedia’s On This Day list, CC BY-SA 4.0. See also the Library of Congress essay Today in History.