Editing Lasne (section)

==Geography==
[[File:Lasne 050910 (3).jpg|thumbnail|left|View of Lasne]]
The municipality takes its name from the river Lasne which rises in the village of [[Plancenoit]] and flows through several of the villages which make up the municipality. The name Lasne comes from the [[Celtic languages|Celtic word]] meaning flat or calm, presumably referring to the slow moving river.

Lasne is in a region of Belgium known as the Pays Romain or Roman Land. The Grand Chemin is a major road traversing the municipality, linking the large towns of Wavre and [[Nivelles]], and formed a part of a network of Roman roads ultimately linking the ports of the [[Rhine]] and [[Seine]] with sea ports. The distance between small chapels on this path is equal to one or more leagues, or at a precise fraction of a [[Gaul]]ish [[league (unit)|league]], where a Gaulish league equals {{convert|2222|m|yd}}.