In Zaanstreek (central North Holland), a traditional region, the old Hollandic dialect, Zaans, is still found but with little West Frisian influence. Some words are similar because of the influence of migrating West Frisian farmers in the 13th to the 15th centuries. Zaans can be seen as one of the few (together with Westfries) and oldest original Hollandic dialects and is still spoken today, like the old Waterlands dialect, which exists as well in Volendam. Both Zaans and Waterlands are unintelligible for someone who does not come from that region in North Holland. However, people who speak Zaans, West Frisian or Waterlands are able to understand one another better than outsiders because all three dialects use similar words.