The 28th World Science Fiction Convention (Worldcon), also known as Heicon '70, was held on 20–24 August 1970 at the Stadthalle Heidelberg in Heidelberg, West Germany.

Manfred Kage eventually became Heicon's convention chairman, the last of more than a dozen fans who briefly held the position during the convention's rocky organizational period.

The World Science Fiction Society administers and presents the Hugo Awards,[1] the oldest and most noteworthy award for science fiction.

Categories include novels and short fiction, artwork, dramatic presentations, and various professional and fandom activities.

[1][2] Other awards may be presented at Worldcon at the discretion of the individual convention committee.