03. Early 20th Century (1900–1940)

The 1908 Tunguska event over Siberia remains Earth’s largest recorded airburst, shaping modern understanding of cosmic impacts and UAP evidence standards.

Explore how early South American newspapers covered the age of flight and why no clear 1908–1910 “airship wave” matches other global scares.

Explore the 1933–34 Swedish “Ghost Flyers” mystery, a wave of unexplained aircraft reports over Norrland that shaped early Scandinavian UAP history.