Short answers, pulled from the story.
The Swedish language began to diverge from Old Norse during the 8th century when Old West Norse and Old East Norse evolved into distinct paths. This divergence was marked by innovations such as the transformation of the diphthong æi into the monophthong é in Runic Danish.
The first complete Swedish Bible translation known as the Gustav Vasa Bible was printed in the year 1541 in Uppsala. This work was translated by Laurentius Andreæ and the brothers Laurentius and Olaus Petri to unify the country under a new national identity.
The Swedish language adopted the singular pronoun du as the standard form of address from the late 1960s to the early 1970s. This social reform replaced centuries of rigid class distinctions and made the language less formal and more reflective of spoken reality.
The Coastal Swedes established their village called Gammalsvenskby or Old Swedish Village in southern Ukraine after fleeing Estonia. This settlement was founded around 1,000 speakers who were forced to march there following the loss of Estonia to the Russian Empire in the early 18th century.
The Swedish alphabet is a 29-letter system that incorporates three additional characters å, ä, and ö which were constructed in the 16th century. These characters are treated as independent letters that follow z in the alphabet and were fully integrated into the language by the 13th edition of Svenska Akademiens ordlista in April 2006.