Gerardus Mercator revolutionized mapmaking. He was almost executed

He changed maps forever, but in the 1500s, that could be a dangerous thing. This is how.

Gerardus Mercator, Flemish Cartographer & Mapmaker

Gerard Mercator - Rugen Island, Germany: An Early 17th Century Map by Mercator and Hondius For Sale at 1stDibs

Gerardus Mercator - Wikipedia

Mercator 1569 World Map

Mercator: The Man Who Mapped the Planet eBook : Crane, Nicholas: Kindle Store

Mercator 1569 world map - Wikipedia

Gerard Mercator - Ancient map of South Russia and Black Sea by Mercator - Engraving - 17th c For Sale at 1stDibs

Mercator. It's a flat, flat world!

Irlandiae regnum.: Geographicus Rare Antique Maps

Mercator maps: Use and criticism « KaiserScience

Mercator 1569 world map - Wikipedia

Mercator. It's a flat, flat world!