In geography, a meridian is a line of constant longitude. Unlike circles of latitude (parallels), which get smaller as they move toward the poles, all meridians are equal in length. They intersect the equator at right angles and converge at the two poles.
The old cartographer, Elara, had spent forty years tracing lines that no one else could see. Her workshop smelled of vellum and dust, and the walls were papered with maps of the world. But her masterpiece was different. It was a single, slender line of ink that ran from the North Pole to the South—the Prime Meridian. longitude meridians
He didn’t know where it led yet. But he knew, for the first time, that he could go there. In geography, a meridian is a line of constant longitude
“What did you do?” Leo asked.