The Civil Rights Act of 1964 outlawed discrimination based on race, color, religion, sex, or national origin.

Gymnastics has been part of the modern Olympics since 1896.

The first Winter Olympics were held in Chamonix, France, in 1924.

Particles can exist in multiple states until observed.

The first woman to complete the Boston Marathon officially was Kathrine Switzer in 1967, despite officials trying to pull her off the course.

In Aztec mythology, the sun and moon were created when two gods threw themselves into a fire at Teotihuacan.

The Dutch Golden Age saw major trade and artistic achievements.

In 1904, an Olympic marathon included bizarre obstacles and poor organization.

Roman gladiatorial games were often less lethal than popular culture suggests — gladiators were expensive to train.