Simone de Beauvoir's 'The Second Sex' laid the intellectual foundation for second-wave feminism.

Yodeling developed in the Alps as a form of long-distance communication between mountains.

The longest note ever held by a human was over 40 seconds by singer Alpaslan Durmuş.

The human voice is the only musical instrument capable of producing language simultaneously with music.

The tradition of the white wedding dress was popularized by Queen Victoria in 1840 — before that, brides wore any color.

About 60% of people have stayed in a relationship longer than they should have.

Christianity has around 2.4 billion followers worldwide — the most followed religion.

K-pop groups are often assembled by entertainment companies using rigorous auditions — trainees can spend years preparing.

Manga accounts for about 40% of all printed material sold in Japan.