3rd World Science Fiction Convention

The 3rd World Science Fiction Convention (Worldcon), also known as Denvention I, was held on 4–6 July 1941 at the Shirley-Savoy Hotel in Denver, Colorado, United States.

Guest of Honor

 * Robert A. Heinlein, who gave a speech entitled "The Discovery of the Future"

Participants
The convention was chaired by Olon F. Wiggins.

Attendance was 90.

This was the last Worldcon before a five-year break in the annual tradition due to World War II. The next one was held in 1946.

Venue
The Shirley-Savoy Hotel. Savoy Hotel opened in 1904; Shirley Hotel opened in 1903; Hotels joined in 1919; Hotels razed in 1970.