The world record for the most T-shirts worn at once is 260, set in 2019.

Particles can exist in multiple states until observed.

Beethoven continued to compose music after going almost completely deaf, including his Ninth Symphony.

The Mona Lisa was considered an unremarkable painting until it was stolen in 1911 — the resulting publicity made it famous.

In behavioral economics, choice architecture — how options are presented — dramatically affects decisions.

Gymnastics has been part of the modern Olympics since 1896.

Ancient Norse mythology described the world as a giant tree — Yggdrasil — connecting nine different realms.

Ballet shoes are made to last only 12–20 hours of use for professional dancers.

The Boston Marathon is one of the oldest annual marathons.