September 1, 2021
The Vinland Map, once hailed as the earliest depiction of the New World, is awash in 20th-century ink. A team of conservators and conservation scientists at Yale has found compelling new evidence for this conclusion through the most thorough analysis yet performed on the infamous parchment map.
Acquired by Yale in the mid-1960s, the purported 15th-century map depicts a pre-Columbian “Vinlanda Insula,” a section of North America’s coastline southwest of Greenland. While earlier studies had detected evidence of modern inks at various points on the map, the new Yale analysis examined the entire document’s elemental composition using state-of-the-art tools and techniques that were previously unavailable.
The analysis revealed that a titanium compound used in inks first produced in the 1920s pervades the map’s lines and text.