the oldest maps Finland, even Scandinavia, was treated as one entity. On
maps from the first half of the 16th century, when makers of maps slowly
began to have more information on the interior of Finland, one factor characterising
Central Finland was Lake Päijänne. On the German Jacob Ziegler's
map of 1532 the only lake in Finland was located in Häme (Tavastia)
and called PEVNTHE or Päijänne. In this regard Päijänne
can be considered Finland's "oldest" lake! Ziegler knows of no
other names in the inner parts of the country.