The spread in Europe and North America of Johannes Gutenberg's mechanized printing press increased the opportunities to spread English-language misinformation. In 1835, the New York Sun published the first large-scale news hoax, known as the "Great Moon Hoax". This was a series of six articles claiming to describe life on the Moon, "complete with illustrations of humanoid bat-creatures and bearded blue unicorns". The fast pace and sometimes strife-filled work of mass-producing news broadsheets also led to copies with factual errors and mistakes, such as the Chicago Tribune's infamous 1948 headline "Dewey Defeats Truman".