sentences:  Moreover, it was written in Icelandic; in an attempt to make mathematics more accessible to his fellow countrymen, Björn even tried to find Icelandic names for mathematical concepts that hitherto had only been named using Danish or Latin words.But the work was largely ignored, and Björn's Icelandic terms never caught on.Begun in 1856, volume 1 was published in Reykjavík in 1865 by E. Þórðarson, but its second part was still unpublished in 2003 and existed only as an unpublished manuscript at the National and University Library of Iceland.