The Gulf of Tonkin incident was later shown to involve disputed reports of attacks.

Some metals explode when they touch water.

Fact #1677 · General

The mere exposure effect increases preference through familiarity.

Fact #1480 · General

First impressions can form within seconds of meeting someone.

Fact #954 · General

A falcon can dive at speeds over 200 mph.

Fact #412 · General

The polio vaccine drastically reduced cases worldwide.

Fact #1193 · General

The Maya city of Tikal was once a powerful urban center.

Fact #1639 · General

Nothing can travel faster than light in a vacuum.

Fact #2081 · General

Narwhals are known for their long spiral tusks.

Fact #376 · General