Mozart wrote his first symphony at the age of 8.

Gymnast Simone Biles has performed skills in competition so advanced they were named after her.

Angels appear in Judaism, Christianity, Islam, and Zoroastrianism — a shared feature of Abrahamic traditions.

Globalization has lowered consumer prices but also suppressed wages in some sectors in developed countries.

The waltz was considered scandalous when introduced in the late 18th century because partners held each other closely.

The NFL Super Bowl is consistently one of the most-watched annual sporting events in the United States.

Opera was invented in Florence around 1600, originally as an attempt to recreate ancient Greek theater.

People are more likely to marry someone with similar education levels.

A regulation NFL football must be inflated to between 12.5 and 13.5 psi.