Home›Browse›meridian arc🌐EnglishEnglishDeutschEspañolFrançaisNederlandsPortuguêsSvenskaРусский中文日本語EntityQ1921708· pop 9· linked from 170 articlesmeridian arcSign in to saveseries of accurate measurements to determine the shape of a meridianAvailable in 9 languagesEspañolFrançaisDeutsch日本語РусскийPortuguêsCatalansimplevia Wikidata sitelinks · CC0