thumb| Karljohansvern administration and chief residential buildings thumb|Karljohansvern military facility thumb|Karljohansvern guard house Karjohansvern (Karljohansvern Orlogsstasjon, KJV) at Horten was the main base for the Royal Norwegian Navy from 1850 to 1963.
thumb| Karljohansvern administration and chief residential buildings thumb|Karljohansvern military facility thumb|Karljohansvern guard house Karjohansvern (Karljohansvern Orlogsstasjon, KJV) at Horten was the main base for the Royal Norwegian Navy from 1850 to 1963.
==Background== In 1818, it was decided to establish a naval base in Horten. It was first called Hortens verft, and later Marinens Hovedværft until King Oscar I named it Carljohansværn værft in 1854 (after his father Karl Johan). The shipyards was begun in 1820 and the first launch, a frigate, was in 1828.
Discovered by embedding cosine similarity (sentence-transformers MiniLM, 384-dim).