(sources)
http://www.thegeneticatlas.com/N_Y-DNA.htm
http://isogg.org/tree/ISOGG_HapgrpN.html
http://www.thegeneticatlas.com/N.htm
This mutative history list is from The Genetic Atlas, shows that Finalnd has more than one type of N1. That means more than one Nordic population lived in Finalnd, many of these population movements are as recent as 2500 BC so its possible those people were speaking other languages?
* N (M231) The Mesolithic marker of expansion in North Asia
* * N1 (LLY22g) The most dominant lineage of M231
* * * N1a (M128) Represents the Eastern most expansion in Eastern Siberia, Mongolia, Beringia, Manchuria, marker of Nordid intrusion in Korea
* * * N1b (P43) The Ultra Nordid marker of Northern Siberia
* * * * N1b1 (P63) The Eastern Ultra Nordid population of Siberia
* * * * N1b2* The Western N1b population, established itself in Russia, Karelia & Finland
* * * * * N1b2a (L665) Ultra Nordid marker in Finland & Karelia
* * * * * N1b2b (L666) Ultra Nordid marker in Karelia & Russia
* * * N1c (M46) The most successful lineage of M231 enjoys predominance in various Nordic regions in Eurasia
* * * * N1c1 (M178) The Ultra Nordid Mesolithic marker of Nordic Europe & the Yakutian regions of Siberia
* * * * * N1c1a (P21) marker of the Omogoj Turkic tribe in Yakutia
* * * * * N1c1b (P67) Predominant lineage amongst Turkic speakers in Yakutia
* * * * * N1c1c (P119) Siberian lineage
* * * * * N1c1d (L708) The Finno-Ugric marker, marker of Finnic substratum amongst Indo-Europeans in Nordic Europe
* * * * * * N1c1d* Finnids that didn't enter Europe in the Mesolithic
* * * * * * N1c1d1 (L1026) Exclusively Finno-Nordid Marker, enjoys predominance in Nordic Finland
* * * * * * * N1c1d1a (L550) A lineage established in Scandinavia, Baltic Europeans, a Varganian marker in Southern Europe
* * * * * * * N1c1d1b (1022) Finno-Karelian lineage
* * * * * * * N1c1d1c (1032) Kazakh lineage
* * * N1d (L727) A Siberian marker that was spread in historic times in the Balkans
