PUBLIC MARKS with tags cartographie & histoire

OpenTreeMap provides an easy-to-use public inventorying platform that enables individuals, organizations, and governments to collaboratively contribute to an interactive and dynamic map of a community’s tree population.

Folded in Place investigates places to which I have never traveled, but wish to engage, even explore, through photography.

The Société d'histoire de Pointe-Saint-Charles created this map which shows the evolution of the shore-line from 1801 to 1968.

The Doggerland project is an attempt to remap Europe and claim back the lost territories of the North Sea

Great circles are straight lines that go all the way around the center of the earth. The equator is a great circle. Meridians of longitude that cross over the north and south poles are also great circles. For every location on a great circle, it's antipodal location is also on the circle. Other than the equator itself, any great circle crosses the equator at two antipodal locations, 180° apart. Other than the equator and meridians of longitude that run due north and south, any great circle reaches it's maximum latitudes at two locations that are 90° of longitude east and west of the two locations where the great circle crosses the equator.

Claude Ptolémée, Cosmographia. Traduction latine de Jacopo d'Angelo. Florence, vers 1465-1470. Manuscrit sur parchemin (43 x 63 cm). BnF, Manuscrits (Latin 4805 fol. 76v-77)