R: Where the Vikings voyaged – interactive map
VIKINGS, FROM OLD NORSE VĂKINGR, WERE GERMANIC NORSE SEAFARERS, SPEAKING THE OLD NORSE LANGUAGE, WHO RAIDED AND TRADED FROM THEIR SCANDINAVIAN HOMELANDS ACROSS WIDE AREAS OF NORTHERN AND CENTRAL EUROPE, AS WELL AS EUROPEAN RUSSIA, DURING THE LATE 8TH TO LATE 11TH CENTURIES
http://www.heritagedaily.com/2016/04/where-the-vikings-voyaged-interactive-map/110521
http://www.heritagedaily.com/2016/04/where-the-vikings-voyaged-interactive-map/110521