the names are sprewanen and heveller why sprevjane and havolane in wikipedia the overwhelming majority of google search results and books show sprewanen for a former tribe in berlin area sprevjane appr sprewanen sprewanen over books sprewanen sprevjane books sprevjane the same goes for the related heveller in the same berlin area over books heveller havolane books havolane why are the odd unknown names sprevjane and havolane pushed in wikipedia