events
The Seattle World's Fair (Century 21 Exposition) opens. It is the first World's Fair in the United States since World War II.

Related Wikipedia articles
Century 21 Exposition
World's fair held in Seattle, Washington
The Century 21 Exposition was a world's fair held April 21, 1962, to October 21, 1962, in Seattle, Washington, United States. Nearly 10 million people attended the fair during its six-month run.Source: Wikipedia (CC BY-SA)
World's fair
Large international exhibition
A world's fair, also known as a universal exhibition, is a large global exhibition designed to showcase the achievements of nations. These exhibitions vary in character and are held in different parts of the world at a specific site for a period of time, typically between three…Source: Wikipedia (CC BY-SA)