Bacon globular

Glareanus globular

Loritz globular

Classifications

archaic
globular

Graticule

Meridians: Central meridian is straight. Other meridians are circular arcs equally spaced along the equator but not along other parallels.
Parallels: Parallel straight lines equally spaced on the meridians 90° from center.
Poles: Points.
Symmetry: About the central meridian or the equator.
Scale: True along the equator.

Distortion

Extreme area and shape distortion near the poles.

Usage

Early hemispheric maps.

Similar projections

Glareanus (Loritz) projection of 1527 is identical.
Apian globular I hemisphere of 1524 has straight parallels equally spaced along the central meridian.

Origin

Presented by Roger Bacon (1214–1294) of England, about 1265, but unclear.

Description adapted from J.P. Snyder and P.M. Voxland, An Album of Map Projections, U.S. Geological Survey Professional Paper 1453. United States Government Printing Office: 1989.