Über die Geometrie der alten Aegypter. Vortrag, gehalten in der feierlichen Sitzung der Kaiserlichen Akademie der Wissenschaften am 29. Mai 1884.

In this historic lecture delivered before the Imperial Academy of Sciences, the speaker sketches a broad picture of how geometric thinking first emerged among humanity’s earliest societies. Beginning with the most elementary notions—a straight line as the shortest distance between two points, the concepts of greater and lesser—he shows how these ideas grew from simple observations of the natural world.

The talk then turns to ancient Egypt, long regarded as a cradle of mathematics, and examines the practical forces that shaped its geometric knowledge. By linking the regularity of the sun’s circle, the pattern of stars, and everyday phenomena such as spider webs and honeycombs to early human abstraction, the lecturer argues that geometry arose wherever people needed to measure, build, and understand their surroundings. He also places Egyptian achievements in the wider context of neighboring cultures, suggesting that similar practical needs spurred comparable developments across the ancient world.