The map is extremely accurate in the sense that a course plotted on the map can be followed by following a compass course. The same does not apply for earlier maps, or by far most modern maps that are designed to match real-world sizes.
The reason the Mercator projection became the standard is that it was, for a long time, the only map you could use to safely navigate long distances, especially across oceans.
The map is extremely accurate in the sense that a course plotted on the map can be followed by following a compass course. The same does not apply for earlier maps, or by far most modern maps that are designed to match real-world sizes.
The reason the Mercator projection became the standard is that it was, for a long time, the only map you could use to safely navigate long distances, especially across oceans.