A Mercator map can never fully show the polar areas, since linear scale becomes infinitely high at the poles.

Converting ruler distance on the Mercator map into true (great circle) distance on the sphere is straightforward along the equator but nowhere else.

A straight line on the Mercator map at angle α to the meridians is a rhumb line.

The locality was known by Europeans as early as 1569, marked on a Mercator map.

The owner gave it to him, and the boy found that he had happened on a treasure; one map was the celebrated 1578 Mercator map of the world.

On the Mercator map of 1575 it is registered as a Wiell.

A Mercator map from 1575 shows rather impressively like the town castle on the mountain spur in the Dörspetal procure was.

In addressing the problem, Snyder cleverly adapted the famed Mercator map to a moving target.

The projection was mathematically based and the Mercator maps gave much more accurate maps for world-wide navigation than any until that date.

The Killiniq locality appears as early as 1569 on a Mercator map.